Question

c) 4x2 + 12x + 9 =
d) (2x + 2)2 =​

Answer 1

Resposta:

c) (2x+3)²

d) 4x² + 8x + 4

Explicação passo a passo:

c)4x² + 12x + 9

4x² +6x +6x +9

2x (2x+3) + 3(2x+3)

(2x+3)+(2x+3)

(2x+3)²

d)  (2x + 2)²

(2x + 2).(2x + 2)

4x² + 4x + 4x + 4

4x² + 8x + 4