El profesor se sorprenderá mucho al ver tu solución correcta😉
(x + 8)*2 - (2*x - 1)*(x - 4) = 60
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(11)^2 - 4 * (-2) * (-48) = -263
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
_____ 11 I*\/ 263 x1 = -- - --------- 4 4
_____ 11 I*\/ 263 x2 = -- + --------- 4 4
x2 = 11/4 + sqrt(263)*i/4
suma
_____ _____ 11 I*\/ 263 11 I*\/ 263 -- - --------- + -- + --------- 4 4 4 4
=
11/2
producto
/ _____\ / _____\ |11 I*\/ 263 | |11 I*\/ 263 | |-- - ---------|*|-- + ---------| \4 4 / \4 4 /
=
24
24
x1 = 2.75 - 4.05431868505671*i
x2 = 2.75 + 4.05431868505671*i
x2 = 2.75 + 4.05431868505671*i