Respuesta :

2 * 2 * 2 - 5 * 1 - 3
2x^2 - 5x - 3 = 0
factor
(2x + 1)(x - 3) = 0
2x + 1 = 0; x = -1/2
x - 3 = 0 ; x = 3

answer
x = -1/2
x = 3