Question

Simplifique a expressao:

(x + 4) (x - 4) + (x - 1)²

Answer 1

Vejamos: (x + 4) . (x - 4) + (x - 1)^2 = x^2 - 16 + x^2 - 2x + 2 = 2x^2 - 2x - 14

Answer 2

Vejamos: (x + 4) . (x - 4) + (x - 1)^2 = x^2 - 16 + x^2 - 2x + 2 = 2x^2 - 2x - 14