El profesor se sorprenderá mucho al ver tu solución correcta😉
2 2 / ___\ / ___\ 2 | 21*\/ 3 | | 21*\/ 3 | /4*x + 63\ |2*x + --------| + |2*x + --------| = |--------| \ 2 / \ 2 / | ___ | \ \/ 3 /
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-168 + 84*sqrt(3))^2 - 4 * (8/3) * (-1323/2) = 7056 + (-168 + 84*sqrt(3))^2
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
___________ / ___ ___ 63 63*\/ 2 - \/ 3 63*\/ 3 x1 = -- - ----------------- - -------- 2 2 4
___________ ___ / ___ 63 63*\/ 3 63*\/ 2 - \/ 3 x2 = -- - -------- + ----------------- 2 4 2
x2 = -63*sqrt(3)/4 + 63*sqrt(2 - sqrt(3))/2 + 63/2
suma
___________ ___________ / ___ ___ ___ / ___ 63 63*\/ 2 - \/ 3 63*\/ 3 63 63*\/ 3 63*\/ 2 - \/ 3 -- - ----------------- - -------- + -- - -------- + ----------------- 2 2 4 2 4 2
=
___ 63*\/ 3 63 - -------- 2
producto
/ ___________ \ / ___________\ | / ___ ___| | ___ / ___ | |63 63*\/ 2 - \/ 3 63*\/ 3 | |63 63*\/ 3 63*\/ 2 - \/ 3 | |-- - ----------------- - --------|*|-- - -------- + -----------------| \2 2 4 / \2 4 2 /
=
-3969 ------ 16
-3969/16