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-x^3+323*x^2/(100*10^2)+609*x/(100*10^6)-493/(100*10^9)=0 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
            2                          
   3   323*x      609*x                
- x  + ------ + --------- - 4.93e-9 = 0
       10000    100000000              
$$\left(\frac{609 x}{100000000} + \left(- x^{3} + \frac{323 x^{2}}{10000}\right)\right) - 4.93 \cdot 10^{-9} = 0$$
Teorema de Cardano-Vieta
reescribamos la ecuación
$$\left(\frac{609 x}{100000000} + \left(- x^{3} + \frac{323 x^{2}}{10000}\right)\right) - 4.93 \cdot 10^{-9} = 0$$
de
$$a x^{3} + b x^{2} + c x + d = 0$$
como ecuación cúbica reducida
$$x^{3} + \frac{b x^{2}}{a} + \frac{c x}{a} + \frac{d}{a} = 0$$
$$x^{3} - \frac{323 x^{2}}{10000} - \frac{609 x}{100000000} + 4.93 \cdot 10^{-9} = 0$$
$$p x^{2} + q x + v + x^{3} = 0$$
donde
$$p = \frac{b}{a}$$
$$p = - \frac{323}{10000}$$
$$q = \frac{c}{a}$$
$$q = - \frac{609}{100000000}$$
$$v = \frac{d}{a}$$
$$v = 4.93 \cdot 10^{-9}$$
Fórmulas de Cardano-Vieta
$$x_{1} + x_{2} + x_{3} = - p$$
$$x_{1} x_{2} + x_{1} x_{3} + x_{2} x_{3} = q$$
$$x_{1} x_{2} x_{3} = v$$
$$x_{1} + x_{2} + x_{3} = \frac{323}{10000}$$
$$x_{1} x_{2} + x_{1} x_{3} + x_{2} x_{3} = - \frac{609}{100000000}$$
$$x_{1} x_{2} x_{3} = 4.93 \cdot 10^{-9}$$
Gráfica
Respuesta rápida [src]
x1 = -0.000491565127182161 + 0.e-25*I
$$x_{1} = -0.000491565127182161 + 4.0 \cdot 10^{-25} i$$
x2 = 0.000308753751833705 + 0.e-22*I
$$x_{2} = 0.000308753751833705 + 1.0 \cdot 10^{-22} i$$
x3 = 0.0324828113753485 - 0.e-24*I
$$x_{3} = 0.0324828113753485 - 2.0 \cdot 10^{-24} i$$
x3 = 0.0324828113753485 - 0.e-24*i
Suma y producto de raíces [src]
suma
-0.000491565127182161 + 0.e-25*I + 0.000308753751833705 + 0.e-22*I + 0.0324828113753485 - 0.e-24*I
$$\left(0.0324828113753485 - 2.0 \cdot 10^{-24} i\right) + \left(\left(-0.000491565127182161 + 4.0 \cdot 10^{-25} i\right) + \left(0.000308753751833705 + 1.0 \cdot 10^{-22} i\right)\right)$$
=
0.0323 + 0.e-22*I
$$0.0323 + 1.0 \cdot 10^{-22} i$$
producto
(-0.000491565127182161 + 0.e-25*I)*(0.000308753751833705 + 0.e-22*I)*(0.0324828113753485 - 0.e-24*I)
$$\left(-0.000491565127182161 + 4.0 \cdot 10^{-25} i\right) \left(0.000308753751833705 + 1.0 \cdot 10^{-22} i\right) \left(0.0324828113753485 - 2.0 \cdot 10^{-24} i\right)$$
=
-4.93e-9 - 1.68621700510016e-27*I
$$-4.93 \cdot 10^{-9} - 1.68621700510016 \cdot 10^{-27} i$$
-4.93e-9 - 1.68621700510016e-27*i
Respuesta numérica [src]
x1 = 0.000308753751833705
x2 = 0.0324828113753485
x3 = -0.000491565127182161
x3 = -0.000491565127182161