El profesor se sorprenderá mucho al ver tu solución correcta😉
4 2 (x + 1) - (x + 1) - 6 = 0
a*v^2 + b*v + c = 0
D = b^2 - 4 * a * c =
(-1)^2 - 4 * (1) * (-6) = 25
v1 = (-b + sqrt(D)) / (2*a)
v2 = (-b - sqrt(D)) / (2*a)
___ x1 = -1 + \/ 3
___ x2 = -1 - \/ 3
___ x3 = -1 - I*\/ 2
___ x4 = -1 + I*\/ 2
x4 = -1 + sqrt(2)*i
suma
___ ___ ___ ___ -1 + \/ 3 + -1 - \/ 3 + -1 - I*\/ 2 + -1 + I*\/ 2
=
-4
producto
/ ___\ / ___\ / ___\ / ___\ \-1 + \/ 3 /*\-1 - \/ 3 /*\-1 - I*\/ 2 /*\-1 + I*\/ 2 /
=
-6
-6
x1 = -1.0 + 1.4142135623731*i
x2 = -2.73205080756888
x3 = -1.0 - 1.4142135623731*i
x4 = 0.732050807568877
x4 = 0.732050807568877