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(a+2)x^2-2(a+3)x+a+5=0 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
         2                          
(a + 2)*x  - 2*(a + 3)*x + a + 5 = 0
$$\left(a + \left(x^{2} \left(a + 2\right) - x 2 \left(a + 3\right)\right)\right) + 5 = 0$$
Solución detallada
Abramos la expresión en la ecuación
$$\left(a + \left(x^{2} \left(a + 2\right) - x 2 \left(a + 3\right)\right)\right) + 5 = 0$$
Obtenemos la ecuación cuadrática
$$a x^{2} - 2 a x + a + 2 x^{2} - 6 x + 5 = 0$$
Es la ecuación de la forma
a*x^2 + b*x + c = 0

La ecuación cuadrática puede ser resuelta
con la ayuda del discriminante.
Las raíces de la ecuación cuadrática:
$$x_{1} = \frac{\sqrt{D} - b}{2 a}$$
$$x_{2} = \frac{- \sqrt{D} - b}{2 a}$$
donde D = b^2 - 4*a*c es el discriminante.
Como
False

$$b = - 2 a - 6$$
$$c = a + 5$$
, entonces
D = b^2 - 4 * a * c = 

(-6 - 2*a)^2 - 4 * (2 + a) * (5 + a) = (-6 - 2*a)^2 - (5 + a)*(8 + 4*a)

La ecuación tiene dos raíces.
x1 = (-b + sqrt(D)) / (2*a)

x2 = (-b - sqrt(D)) / (2*a)

o
$$x_{1} = \frac{2 a + \sqrt{\left(- 2 a - 6\right)^{2} - \left(a + 5\right) \left(4 a + 8\right)} + 6}{2 a + 4}$$
$$x_{2} = \frac{2 a - \sqrt{\left(- 2 a - 6\right)^{2} - \left(a + 5\right) \left(4 a + 8\right)} + 6}{2 a + 4}$$
Resolución de la ecuación paramétrica
Se da la ecuación con parámetro:
$$a + x^{2} \left(a + 2\right) - x \left(2 a + 6\right) + 5 = 0$$
Коэффициент при x равен
$$a + 2$$
entonces son posibles los casos para a :
$$a < -2$$
$$a = -2$$
Consideremos todos los casos con detalles:
Con
$$a < -2$$
la ecuación será
$$2 - x^{2} = 0$$
su solución
$$x = - \sqrt{2}$$
$$x = \sqrt{2}$$
Con
$$a = -2$$
la ecuación será
$$3 - 2 x = 0$$
su solución
$$x = \frac{3}{2}$$
Teorema de Cardano-Vieta
reescribamos la ecuación
$$\left(a + \left(x^{2} \left(a + 2\right) - x 2 \left(a + 3\right)\right)\right) + 5 = 0$$
de
$$a x^{2} + b x + c = 0$$
como ecuación cuadrática reducida
$$x^{2} + \frac{b x}{a} + \frac{c}{a} = 0$$
$$\frac{a + x^{2} \left(a + 2\right) - x \left(2 a + 6\right) + 5}{a + 2} = 0$$
$$p x + q + x^{2} = 0$$
donde
$$p = \frac{b}{a}$$
$$p = \frac{- 2 a - 6}{a + 2}$$
$$q = \frac{c}{a}$$
$$q = \frac{a + 5}{a + 2}$$
Fórmulas de Cardano-Vieta
$$x_{1} + x_{2} = - p$$
$$x_{1} x_{2} = q$$
$$x_{1} + x_{2} = - \frac{- 2 a - 6}{a + 2}$$
$$x_{1} x_{2} = \frac{a + 5}{a + 2}$$
Gráfica
Respuesta rápida [src]
       /            /     ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \   /     ________________________                                       \      
       |            |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      
       |(2 + re(a))*|- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)
       |            \                                 \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /   \                                 \            2            /        /      
x1 = I*|---------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + ----------------------------------------------------------------------------
       |                                         2     2                                                                            2     2                                |                                             2     2                                                                            2     2                               
       \                              (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                            
$$x_{1} = \frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
       /            /   ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \   /   ________________________                                       \      
       |            |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      
       |(2 + re(a))*|\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)
       |            \                               \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /   \                               \            2            /        /      
x2 = I*|-------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + --------------------------------------------------------------------------
       |                                        2     2                                                                           2     2                                |                                             2     2                                                                           2     2                              
       \                             (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                           
$$x_{2} = \frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
x2 = (((-re(a) - 1)^2 + im(a)^2)^(1/4)*sin(atan2(-im(a, -re(a) - 1)/2) + im(a))*im(a)/((re(a) + 2)^2 + im(a)^2) + i*((((-re(a) - 1)^2 + im(a)^2)^(1/4)*sin(atan2(-im(a), -re(a) - 1)/2) + im(a))*(re(a) + 2)/((re(a) + 2)^2 + im(a)^2) - (((-re(a) - 1)^2 + im(a)^2)^(1/4)*cos(atan2(-im(a), -re(a) - 1)/2) + re(a) + 3)*im(a)/((re(a) + 2)^2 + im(a)^2)) + (re(a) + 2)*(((-re(a) - 1)^2 + im(a)^2)^(1/4)*cos(atan2(-im(a), -re(a) - 1)/2) + re(a) + 3)/((re(a) + 2)^2 + im(a)^2))
Suma y producto de raíces [src]
suma
  /            /     ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \   /     ________________________                                       \           /            /   ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \   /   ________________________                                       \      
  |            |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |           |            |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      
  |(2 + re(a))*|- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)     |(2 + re(a))*|\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)
  |            \                                 \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /   \                                 \            2            /        /           |            \                               \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /   \                               \            2            /        /      
I*|---------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + ---------------------------------------------------------------------------- + I*|-------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + --------------------------------------------------------------------------
  |                                         2     2                                                                            2     2                                |                                             2     2                                                                            2     2                                    |                                        2     2                                                                           2     2                                |                                             2     2                                                                           2     2                              
  \                              (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                                 \                             (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                           
$$\left(\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \left(\frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right)$$
=
  /            /   ________________________                                       \   /       ________________________                                       \      \     /            /     ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \               /       ________________________                                       \   /   ________________________                                       \         /     ________________________                                       \      
  |            |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |     |            |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |         |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      
  |(2 + re(a))*|\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|     |(2 + re(a))*|- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   (2 + re(a))*|3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)   |- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)
  |            \                               \            2            /        /   \                                   \            2            /        /      |     |            \                                 \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /               \                                   \            2            /        /   \                               \            2            /        /         \                                 \            2            /        /      
I*|-------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + I*|---------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + ------------------------------------------------------------------------------------ + -------------------------------------------------------------------------- + ----------------------------------------------------------------------------
  |                                        2     2                                                                           2     2                                |     |                                         2     2                                                                            2     2                                |                                             2     2                                                                                2     2                                                                           2     2                                                                       2     2                               
  \                             (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                             /     \                              (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                                  (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                                                         (2 + re(a))  + im (a)                            
$$\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + i \left(\frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}$$
producto
/  /            /     ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \   /     ________________________                                       \      \ /  /            /   ________________________                                       \   /       ________________________                                       \      \               /       ________________________                                       \   /   ________________________                                       \      \
|  |            |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |  4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      | |  |            |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |               |    4 /             2     2        /atan2(-im(a), -1 - re(a))\        |   |4 /             2     2        /atan2(-im(a), -1 - re(a))\        |      |
|  |(2 + re(a))*|- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 - \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |- \/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)| |  |(2 + re(a))*|\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|   |3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|*im(a)|   (2 + re(a))*|3 + \/  (-1 - re(a))  + im (a) *cos|-------------------------| + re(a)|   |\/  (-1 - re(a))  + im (a) *sin|-------------------------| + im(a)|*im(a)|
|  |            \                                 \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /   \                                 \            2            /        /      | |  |            \                               \            2            /        /   \                                   \            2            /        /      |               \                                   \            2            /        /   \                               \            2            /        /      |
|I*|---------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + ----------------------------------------------------------------------------|*|I*|-------------------------------------------------------------------------------- - ------------------------------------------------------------------------------| + ------------------------------------------------------------------------------------ + --------------------------------------------------------------------------|
|  |                                         2     2                                                                            2     2                                |                                             2     2                                                                            2     2                               | |  |                                        2     2                                                                           2     2                                |                                             2     2                                                                           2     2                              |
\  \                              (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                              (2 + re(a))  + im (a)                            / \  \                             (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                             /                                  (2 + re(a))  + im (a)                                                             (2 + re(a))  + im (a)                           /
$$\left(\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(- \sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) \left(\frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} + i \left(\frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{im}{\left(a\right)}\right) \left(\operatorname{re}{\left(a\right)} + 2\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} - \frac{\left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right) \operatorname{im}{\left(a\right)}}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right) + \frac{\left(\operatorname{re}{\left(a\right)} + 2\right) \left(\sqrt[4]{\left(- \operatorname{re}{\left(a\right)} - 1\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- \operatorname{im}{\left(a\right)},- \operatorname{re}{\left(a\right)} - 1 \right)}}{2} \right)} + \operatorname{re}{\left(a\right)} + 3\right)}{\left(\operatorname{re}{\left(a\right)} + 2\right)^{2} + \left(\operatorname{im}{\left(a\right)}\right)^{2}}\right)$$
=
       2        2                         
10 + im (a) + re (a) + 7*re(a) - 3*I*im(a)
------------------------------------------
            2        2                    
      4 + im (a) + re (a) + 4*re(a)       
$$\frac{\left(\operatorname{re}{\left(a\right)}\right)^{2} + 7 \operatorname{re}{\left(a\right)} + \left(\operatorname{im}{\left(a\right)}\right)^{2} - 3 i \operatorname{im}{\left(a\right)} + 10}{\left(\operatorname{re}{\left(a\right)}\right)^{2} + 4 \operatorname{re}{\left(a\right)} + \left(\operatorname{im}{\left(a\right)}\right)^{2} + 4}$$
(10 + im(a)^2 + re(a)^2 + 7*re(a) - 3*i*im(a))/(4 + im(a)^2 + re(a)^2 + 4*re(a))