Resolución de la ecuación paramétrica
Se da la ecuación con parámetro:
$$x y + y^{2} = 5$$
Коэффициент при x равен
$$y$$
entonces son posibles los casos para y :
$$y < 0$$
$$y = 0$$
Consideremos todos los casos con detalles:
Con
$$y < 0$$
la ecuación será
$$- x - 4 = 0$$
su solución
$$x = -4$$
Con
$$y = 0$$
la ecuación será
$$-5 = 0$$
su solución
no hay soluciones
Suma y producto de raíces
[src]
/ 5*im(y) \ 5*re(y)
-re(y) + I*|-im(y) - ---------------| + ---------------
| 2 2 | 2 2
\ im (y) + re (y)/ im (y) + re (y)
$$i \left(- \operatorname{im}{\left(y\right)} - \frac{5 \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) - \operatorname{re}{\left(y\right)} + \frac{5 \operatorname{re}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
/ 5*im(y) \ 5*re(y)
-re(y) + I*|-im(y) - ---------------| + ---------------
| 2 2 | 2 2
\ im (y) + re (y)/ im (y) + re (y)
$$i \left(- \operatorname{im}{\left(y\right)} - \frac{5 \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) - \operatorname{re}{\left(y\right)} + \frac{5 \operatorname{re}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
/ 5*im(y) \ 5*re(y)
-re(y) + I*|-im(y) - ---------------| + ---------------
| 2 2 | 2 2
\ im (y) + re (y)/ im (y) + re (y)
$$i \left(- \operatorname{im}{\left(y\right)} - \frac{5 \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) - \operatorname{re}{\left(y\right)} + \frac{5 \operatorname{re}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
/ 2 2 \ / 2 2 \
5*re(y) - \im (y) + re (y)/*re(y) - I*\5 + im (y) + re (y)/*im(y)
-----------------------------------------------------------------
2 2
im (y) + re (y)
$$\frac{- \left(\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}\right) \operatorname{re}{\left(y\right)} - i \left(\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2} + 5\right) \operatorname{im}{\left(y\right)} + 5 \operatorname{re}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
(5*re(y) - (im(y)^2 + re(y)^2)*re(y) - i*(5 + im(y)^2 + re(y)^2)*im(y))/(im(y)^2 + re(y)^2)
/ 5*im(y) \ 5*re(y)
x1 = -re(y) + I*|-im(y) - ---------------| + ---------------
| 2 2 | 2 2
\ im (y) + re (y)/ im (y) + re (y)
$$x_{1} = i \left(- \operatorname{im}{\left(y\right)} - \frac{5 \operatorname{im}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}\right) - \operatorname{re}{\left(y\right)} + \frac{5 \operatorname{re}{\left(y\right)}}{\left(\operatorname{re}{\left(y\right)}\right)^{2} + \left(\operatorname{im}{\left(y\right)}\right)^{2}}$$
x1 = i*(-im(y) - 5*im(y)/(re(y)^2 + im(y)^2)) - re(y) + 5*re(y)/(re(y)^2 + im(y)^2)