El profesor se sorprenderá mucho al ver tu solución correcta😉
4 3 2 x - 2*x + x - 1 = 0
suma
___ ___ ___ ___ 1 \/ 5 1 \/ 5 1 I*\/ 3 1 I*\/ 3 - - ----- + - + ----- + - - ------- + - + ------- 2 2 2 2 2 2 2 2
=
2
producto
/ ___\ / ___\ / ___\ / ___\ |1 \/ 5 | |1 \/ 5 | |1 I*\/ 3 | |1 I*\/ 3 | |- - -----|*|- + -----|*|- - -------|*|- + -------| \2 2 / \2 2 / \2 2 / \2 2 /
=
-1
-1
___ 1 \/ 5 x1 = - - ----- 2 2
___ 1 \/ 5 x2 = - + ----- 2 2
___ 1 I*\/ 3 x3 = - - ------- 2 2
___ 1 I*\/ 3 x4 = - + ------- 2 2
x4 = 1/2 + sqrt(3)*i/2
x1 = 0.5 + 0.866025403784439*i
x2 = 1.61803398874989
x3 = -0.618033988749895
x4 = 0.5 - 0.866025403784439*i
x4 = 0.5 - 0.866025403784439*i