El profesor se sorprenderá mucho al ver tu solución correcta😉
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(6)^2 - 4 * (4) * (9) = -108
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
___ 3 3*I*\/ 3 x1 = - - - --------- 4 4
___ 3 3*I*\/ 3 x2 = - - + --------- 4 4
x2 = -3/4 + 3*sqrt(3)*i/4
suma
___ ___ 3 3*I*\/ 3 3 3*I*\/ 3 - - - --------- + - - + --------- 4 4 4 4
=
-3/2
producto
/ ___\ / ___\ | 3 3*I*\/ 3 | | 3 3*I*\/ 3 | |- - - ---------|*|- - + ---------| \ 4 4 / \ 4 4 /
=
9/4
9/4
x1 = -0.75 - 1.29903810567666*i
x2 = -0.75 + 1.29903810567666*i
x2 = -0.75 + 1.29903810567666*i