Question

Considere os polinomios : A= -5x³ + 4x² - 9x + 5 ; B = 4x - 9 ; C = x² - 8 . Calcule :

B.B

Answer 1

$\boxed{B.B=(4x-9)(4x-9)=16x^2-72x+81}$

Answer 2

(4x - 9)(4x - 9) =

16x^2 - 72x + 81