Respuesta :

Answer:

Step-by-step explanation:

x = 3

(x - 3) = 0

x = -1

(x - (-1))

(x + 1) = 0

(x - 3)(x + 1) = 0

x^2 + x - 3x - 3 = 0

x^2 - 2x - 3 = 0