El profesor se sorprenderá mucho al ver tu solución correcta😉
2 / 2 \ 2 \x - 6*x + 8/ - 9*x - 6*x = 1
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-9)^2 - 4 * (1) * (7) = 53
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-3)^2 - 4 * (1) * (9) = -27
x3 = (-b + sqrt(D)) / (2*a)
x4 = (-b - sqrt(D)) / (2*a)
suma
____ ____ ___ ___ 9 \/ 53 9 \/ 53 3 3*I*\/ 3 3 3*I*\/ 3 - - ------ + - + ------ + - - --------- + - + --------- 2 2 2 2 2 2 2 2
=
12
producto
/ ____\ / ____\ / ___\ / ___\ |9 \/ 53 | |9 \/ 53 | |3 3*I*\/ 3 | |3 3*I*\/ 3 | |- - ------|*|- + ------|*|- - ---------|*|- + ---------| \2 2 / \2 2 / \2 2 / \2 2 /
=
63
63
____ 9 \/ 53 x1 = - - ------ 2 2
____ 9 \/ 53 x2 = - + ------ 2 2
___ 3 3*I*\/ 3 x3 = - - --------- 2 2
___ 3 3*I*\/ 3 x4 = - + --------- 2 2
x4 = 3/2 + 3*sqrt(3)*i/2
x1 = 8.14005494464026
x2 = 0.859945055359741
x3 = 1.5 - 2.59807621135332*i
x4 = 1.5 + 2.59807621135332*i
x4 = 1.5 + 2.59807621135332*i