El profesor se sorprenderá mucho al ver tu solución correcta😉
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(3)^2 - 4 * (-1) * (-4 + a) = -7 + 4*a
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
suma
_____________________________ _____________________________ _____________________________ _____________________________ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ \/ (-7 + 4*re(a)) + 16*im (a) *cos|----------------------------| I*\/ (-7 + 4*re(a)) + 16*im (a) *sin|----------------------------| \/ (-7 + 4*re(a)) + 16*im (a) *cos|----------------------------| I*\/ (-7 + 4*re(a)) + 16*im (a) *sin|----------------------------| 3 \ 2 / \ 2 / 3 \ 2 / \ 2 / - - ------------------------------------------------------------------ - -------------------------------------------------------------------- + - + ------------------------------------------------------------------ + -------------------------------------------------------------------- 2 2 2 2 2 2
=
3
producto
/ _____________________________ _____________________________ \ / _____________________________ _____________________________ \ | 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\| | 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\| | \/ (-7 + 4*re(a)) + 16*im (a) *cos|----------------------------| I*\/ (-7 + 4*re(a)) + 16*im (a) *sin|----------------------------|| | \/ (-7 + 4*re(a)) + 16*im (a) *cos|----------------------------| I*\/ (-7 + 4*re(a)) + 16*im (a) *sin|----------------------------|| |3 \ 2 / \ 2 /| |3 \ 2 / \ 2 /| |- - ------------------------------------------------------------------ - --------------------------------------------------------------------|*|- + ------------------------------------------------------------------ + --------------------------------------------------------------------| \2 2 2 / \2 2 2 /
=
4 - re(a) - I*im(a)
4 - re(a) - i*im(a)
_____________________________ _____________________________ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ \/ (-7 + 4*re(a)) + 16*im (a) *cos|----------------------------| I*\/ (-7 + 4*re(a)) + 16*im (a) *sin|----------------------------| 3 \ 2 / \ 2 / x1 = - - ------------------------------------------------------------------ - -------------------------------------------------------------------- 2 2 2
_____________________________ _____________________________ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ 4 / 2 2 /atan2(4*im(a), -7 + 4*re(a))\ \/ (-7 + 4*re(a)) + 16*im (a) *cos|----------------------------| I*\/ (-7 + 4*re(a)) + 16*im (a) *sin|----------------------------| 3 \ 2 / \ 2 / x2 = - + ------------------------------------------------------------------ + -------------------------------------------------------------------- 2 2 2
x2 = i*((4*re(a) - 7)^2 + 16*im(a)^2)^(1/4)*sin(atan2(4*im(a, 4*re(a) - 7)/2)/2 + ((4*re(a) - 7)^2 + 16*im(a)^2)^(1/4)*cos(atan2(4*im(a), 4*re(a) - 7)/2)/2 + 3/2)