Solución detallada
Tenemos la ecuación:
(-2*x3*a+4*a-3*x)*(-3*x3) = 0
Abrimos la expresión:
-12*a*x3 + 6*a*x3^2 + 9*x*x3 = 0
Reducimos, obtenemos:
-12*a*x3 + 6*a*x3^2 + 9*x*x3 = 0
Dividamos ambos miembros de la ecuación en (-12*a*x3 + 6*a*x3^2 + 9*x*x3)/x
x = 0 / ((-12*a*x3 + 6*a*x3^2 + 9*x*x3)/x)
Obtenemos la respuesta: x = 2*a*(2 - x3)/3
Suma y producto de raíces
[src]
/ 2*im(x3)*re(a) 2*(2 - re(x3))*im(a)\ 2*(2 - re(x3))*re(a) 2*im(a)*im(x3)
I*|- -------------- + --------------------| + -------------------- + --------------
\ 3 3 / 3 3
$$\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{re}{\left(a\right)}}{3} + i \left(\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{im}{\left(a\right)}}{3} - \frac{2 \operatorname{re}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}\right) + \frac{2 \operatorname{im}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}$$
/ 2*im(x3)*re(a) 2*(2 - re(x3))*im(a)\ 2*(2 - re(x3))*re(a) 2*im(a)*im(x3)
I*|- -------------- + --------------------| + -------------------- + --------------
\ 3 3 / 3 3
$$\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{re}{\left(a\right)}}{3} + i \left(\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{im}{\left(a\right)}}{3} - \frac{2 \operatorname{re}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}\right) + \frac{2 \operatorname{im}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}$$
/ 2*im(x3)*re(a) 2*(2 - re(x3))*im(a)\ 2*(2 - re(x3))*re(a) 2*im(a)*im(x3)
I*|- -------------- + --------------------| + -------------------- + --------------
\ 3 3 / 3 3
$$\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{re}{\left(a\right)}}{3} + i \left(\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{im}{\left(a\right)}}{3} - \frac{2 \operatorname{re}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}\right) + \frac{2 \operatorname{im}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}$$
2*I*((-2 + re(x3))*im(a) + im(x3)*re(a)) 2*(-2 + re(x3))*re(a) 2*im(a)*im(x3)
- ---------------------------------------- - --------------------- + --------------
3 3 3
$$- \frac{2 i \left(\left(\operatorname{re}{\left(x_{3}\right)} - 2\right) \operatorname{im}{\left(a\right)} + \operatorname{re}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}\right)}{3} - \frac{2 \left(\operatorname{re}{\left(x_{3}\right)} - 2\right) \operatorname{re}{\left(a\right)}}{3} + \frac{2 \operatorname{im}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}$$
-2*i*((-2 + re(x3))*im(a) + im(x3)*re(a))/3 - 2*(-2 + re(x3))*re(a)/3 + 2*im(a)*im(x3)/3
/ 2*im(x3)*re(a) 2*(2 - re(x3))*im(a)\ 2*(2 - re(x3))*re(a) 2*im(a)*im(x3)
x1 = I*|- -------------- + --------------------| + -------------------- + --------------
\ 3 3 / 3 3
$$x_{1} = \frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{re}{\left(a\right)}}{3} + i \left(\frac{2 \left(2 - \operatorname{re}{\left(x_{3}\right)}\right) \operatorname{im}{\left(a\right)}}{3} - \frac{2 \operatorname{re}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}\right) + \frac{2 \operatorname{im}{\left(a\right)} \operatorname{im}{\left(x_{3}\right)}}{3}$$
x1 = 2*(2 - re(x3))*re(a)/3 + i*(2*(2 - re(x3))*im(a)/3 - 2*re(a)*im(x3)/3) + 2*im(a)*im(x3)/3