El profesor se sorprenderá mucho al ver tu solución correcta😉
(x + 3)*(x + 4)*(x + 5)*(x + 6) = 3
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(9)^2 - 4 * (1) * (17) = 13
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 =
(9)^2 - 4 * (1) * (21) = -3
x3 = (-b + sqrt(D)) / (2*a)
x4 = (-b - sqrt(D)) / (2*a)
____ 9 \/ 13 x1 = - - - ------ 2 2
____ 9 \/ 13 x2 = - - + ------ 2 2
___ 9 I*\/ 3 x3 = - - - ------- 2 2
___ 9 I*\/ 3 x4 = - - + ------- 2 2
x4 = -9/2 + sqrt(3)*i/2
suma
____ ____ ___ ___ 9 \/ 13 9 \/ 13 9 I*\/ 3 9 I*\/ 3 - - - ------ + - - + ------ + - - - ------- + - - + ------- 2 2 2 2 2 2 2 2
=
-18
producto
/ ____\ / ____\ / ___\ / ___\ | 9 \/ 13 | | 9 \/ 13 | | 9 I*\/ 3 | | 9 I*\/ 3 | |- - - ------|*|- - + ------|*|- - - -------|*|- - + -------| \ 2 2 / \ 2 2 / \ 2 2 / \ 2 2 /
=
357
357
x1 = -4.5 - 0.866025403784439*i
x2 = -4.5 + 0.866025403784439*i
x3 = -2.69722436226801
x4 = -6.30277563773199
x4 = -6.30277563773199