Respuesta :

Answer:

x^2 - 3x - 40

Step-by-step explanation:

x = 8 and x = -5

x - 8 = 0 and x + 5 = 0

(x - 8)(x + 5)

x^2 + 5x - 8x - 40

x^2 - 3x - 40

Answer:  x^2 - 3x - 40