El profesor se sorprenderá mucho al ver tu solución correcta😉
________________ / 2 \/ 8*x + 8*x + 7 = x + 2
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(4)^2 - 4 * (7) * (3) = -68
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
____ 2 I*\/ 17 x1 = - - - -------- 7 7
____ 2 I*\/ 17 x2 = - - + -------- 7 7
x2 = -2/7 + sqrt(17)*i/7
suma
____ ____ 2 I*\/ 17 2 I*\/ 17 - - - -------- + - - + -------- 7 7 7 7
=
-4/7
producto
/ ____\ / ____\ | 2 I*\/ 17 | | 2 I*\/ 17 | |- - - --------|*|- - + --------| \ 7 7 / \ 7 7 /
=
3/7
3/7
x1 = -0.285714285714286 - 0.589015089373952*i
x2 = -0.285714285714286 + 0.589015089373952*i
x2 = -0.285714285714286 + 0.589015089373952*i