El profesor se sorprenderá mucho al ver tu solución correcta😉
(x - 1)*(x - 5)*(x + 3)*(x + 7) = 135
______________ / _____ x1 = -1 - \/ 20 - \/ 391
______________ / _____ x2 = -1 + \/ 20 - \/ 391
______________ / _____ x3 = -1 + \/ 20 + \/ 391
______________ / _____ x4 = -1 - \/ 20 + \/ 391
x4 = -sqrt(sqrt(391) + 20) - 1
suma
______________ ______________ ______________ ______________ / _____ / _____ / _____ / _____ -1 - \/ 20 - \/ 391 + -1 + \/ 20 - \/ 391 + -1 + \/ 20 + \/ 391 + -1 - \/ 20 + \/ 391
=
-4
producto
/ ______________\ / ______________\ / ______________\ / ______________\ | / _____ | | / _____ | | / _____ | | / _____ | \-1 - \/ 20 - \/ 391 /*\-1 + \/ 20 - \/ 391 /*\-1 + \/ 20 + \/ 391 /*\-1 - \/ 20 + \/ 391 /
=
-30
-30
x1 = -0.524310955860016
x2 = 5.30664093898528
x3 = -7.30664093898528
x4 = -1.47568904413998
x4 = -1.47568904413998