El profesor se sorprenderá mucho al ver tu solución correcta😉
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(17)^2 - 4 * (-5) * (-15) = -11
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
suma
____ ____ 17 I*\/ 11 17 I*\/ 11 -- - -------- + -- + -------- 10 10 10 10
=
17/5
producto
/ ____\ / ____\ |17 I*\/ 11 | |17 I*\/ 11 | |-- - --------|*|-- + --------| \10 10 / \10 10 /
=
3
3
____ 17 I*\/ 11 x1 = -- - -------- 10 10
____ 17 I*\/ 11 x2 = -- + -------- 10 10
x2 = 17/10 + sqrt(11)*i/10
x1 = 1.7 + 0.33166247903554*i
x2 = 1.7 - 0.33166247903554*i
x2 = 1.7 - 0.33166247903554*i