Respuesta :

texaschic101
(2x + 1)(x - 3)(x - 2)

(2x + 1)(x - 3) = 2x^2 - 6x + x - 3 = 2x^2 - 5x - 3

(x - 2)(2x^2 - 5x - 3) = -2(2x^2 - 5x - 3) + x(2x^2 - 5x - 3) =
-4x^2 + 10x + 6 + 2x^3 - 5x^2 - 3x =
2x^3 -9x^2 + 7x + 6 <=====