El profesor se sorprenderá mucho al ver tu solución correcta😉
1 1 -30 = ------- - ------- a*x - 1 a*x + 1
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(0)^2 - 4 * (-30*a^2) * (28) = 3360*a^2
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
suma
_____ _____ _____ _____ \/ 210 *re(a) I*\/ 210 *im(a) \/ 210 *re(a) I*\/ 210 *im(a) - -------------------- + -------------------- + -------------------- - -------------------- / 2 2 \ / 2 2 \ / 2 2 \ / 2 2 \ 15*\im (a) + re (a)/ 15*\im (a) + re (a)/ 15*\im (a) + re (a)/ 15*\im (a) + re (a)/
=
0
producto
/ _____ _____ \ / _____ _____ \ | \/ 210 *re(a) I*\/ 210 *im(a) | | \/ 210 *re(a) I*\/ 210 *im(a) | |- -------------------- + --------------------|*|-------------------- - --------------------| | / 2 2 \ / 2 2 \| | / 2 2 \ / 2 2 \| \ 15*\im (a) + re (a)/ 15*\im (a) + re (a)// \15*\im (a) + re (a)/ 15*\im (a) + re (a)//
=
2 -14*(-I*im(a) + re(a)) ----------------------- 2 / 2 2 \ 15*\im (a) + re (a)/
-14*(-i*im(a) + re(a))^2/(15*(im(a)^2 + re(a)^2)^2)
_____ _____ \/ 210 *re(a) I*\/ 210 *im(a) x1 = - -------------------- + -------------------- / 2 2 \ / 2 2 \ 15*\im (a) + re (a)/ 15*\im (a) + re (a)/
_____ _____ \/ 210 *re(a) I*\/ 210 *im(a) x2 = -------------------- - -------------------- / 2 2 \ / 2 2 \ 15*\im (a) + re (a)/ 15*\im (a) + re (a)/
x2 = sqrt(210)*re(a)/(15*(re(a)^2 + im(a)^2)) - sqrt(210)*i*im(a)/(15*(re(a)^2 + im(a)^2))