Question

Fatore o trinômio x² + 4x - 12
a) (x + 3) ²
b) (x + 6) (x - 2)
c) (x + 6) (x + 4)
d) (x + 6) ²
e) (x – 6)(x + 2)

Answer 1

Resposta:

Letra B

Conta:

(x + 6) (x -2) =

x² - 2x + 6x - 12 =

x² + 4x - 12