El profesor se sorprenderá mucho al ver tu solución correcta😉
________ 4 2 3 _______ 3 / 2 x - 7*x + 9 = \/ x + 1 - \/ x - 2
x1 = 2.30277563773199
x2 = -1.31071987413544 - 0.115041998821427*i
x3 = -1.31071987413544 + 0.115041998821427*i
x3 = -1.31071987413544 + 0.115041998821427*i