Question

Calcule d) (x +4)² =

Answer 1

Resposta: 8

Explicação passo-a-passo:

2x = 16

x = 16 : 2

x = 8

Answer 2

Oie, Td Bom?!

$= (x + 4) {}^{2}$

$= x {}^{2} + 2x \: . \: 4 + 4 {}^{2}$

$= x {}^{2} + 8x + 16$

Att. Makaveli1996