El profesor se sorprenderá mucho al ver tu solución correcta😉
(x - 1)*(x - 5)*(x - 2)*(x - 6) = 21
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-7)^2 - 4 * (1) * (3) = 37
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 =
(-7)^2 - 4 * (1) * (13) = -3
x3 = (-b + sqrt(D)) / (2*a)
x4 = (-b - sqrt(D)) / (2*a)
suma
____ ____ ___ ___ 7 \/ 37 7 \/ 37 7 I*\/ 3 7 I*\/ 3 - - ------ + - + ------ + - - ------- + - + ------- 2 2 2 2 2 2 2 2
=
14
producto
/ ____\ / ____\ / ___\ / ___\ |7 \/ 37 | |7 \/ 37 | |7 I*\/ 3 | |7 I*\/ 3 | |- - ------|*|- + ------|*|- - -------|*|- + -------| \2 2 / \2 2 / \2 2 / \2 2 /
=
39
39
____ 7 \/ 37 x1 = - - ------ 2 2
____ 7 \/ 37 x2 = - + ------ 2 2
___ 7 I*\/ 3 x3 = - - ------- 2 2
___ 7 I*\/ 3 x4 = - + ------- 2 2
x4 = 7/2 + sqrt(3)*i/2
x1 = 0.45861873485089
x2 = 3.5 + 0.866025403784439*i
x3 = 6.54138126514911
x4 = 3.5 - 0.866025403784439*i
x4 = 3.5 - 0.866025403784439*i