El profesor se sorprenderá mucho al ver tu solución correcta😉
/ 2 \ / 2 \ \x - 2*x - 8/*\x - 8*x + 7/ = 63
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-5)^2 - 4 * (1) * (-17) = 93
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 =
(-5)^2 - 4 * (1) * (7) = -3
x3 = (-b + sqrt(D)) / (2*a)
x4 = (-b - sqrt(D)) / (2*a)
____ 5 \/ 93 x1 = - - ------ 2 2
____ 5 \/ 93 x2 = - + ------ 2 2
___ 5 I*\/ 3 x3 = - - ------- 2 2
___ 5 I*\/ 3 x4 = - + ------- 2 2
x4 = 5/2 + sqrt(3)*i/2
suma
____ ____ ___ ___ 5 \/ 93 5 \/ 93 5 I*\/ 3 5 I*\/ 3 - - ------ + - + ------ + - - ------- + - + ------- 2 2 2 2 2 2 2 2
=
10
producto
/ ____\ / ____\ / ___\ / ___\ |5 \/ 93 | |5 \/ 93 | |5 I*\/ 3 | |5 I*\/ 3 | |- - ------|*|- + ------|*|- - -------|*|- + -------| \2 2 / \2 2 / \2 2 / \2 2 /
=
-119
-119
x1 = 2.5 + 0.866025403784439*i
x2 = 2.5 - 0.866025403784439*i
x3 = 7.32182538049648
x4 = -2.32182538049648
x4 = -2.32182538049648