Question

Efetue: (X + 8) . (X - 5) =

Answer 1

Olá,

(x+8)(x-5) = x(x) + x(-5) + 8(x) + 8(-5) = x² - 5x + 8x - 40
(x+8)(x-5) = x² + 3x - 40

Resposta:

x² + 3x - 40

Answer 2

$(X + 8) . (X - 5) \\ \\ x^{2} -5x +8x- 40 \\ \\ x^{2} +3x-40$