El profesor se sorprenderá mucho al ver tu solución correcta😉
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-5)^2 - 4 * (-1) * (-4 + sqrt(6)) = 9 + 4*sqrt(6)
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
_____________ / ___ 5 \/ 9 + 4*\/ 6 x1 = - - - ---------------- 2 2
_____________ / ___ 5 \/ 9 + 4*\/ 6 x2 = - - + ---------------- 2 2
x2 = -5/2 + sqrt(9 + 4*sqrt(6))/2
suma
_____________ _____________ / ___ / ___ 5 \/ 9 + 4*\/ 6 5 \/ 9 + 4*\/ 6 - - - ---------------- + - - + ---------------- 2 2 2 2
=
-5
producto
/ _____________\ / _____________\ | / ___ | | / ___ | | 5 \/ 9 + 4*\/ 6 | | 5 \/ 9 + 4*\/ 6 | |- - - ----------------|*|- - + ----------------| \ 2 2 / \ 2 2 /
=
___ 4 - \/ 6
4 - sqrt(6)