Question

ATIVIDADE (1).
AGORA CALCULE.
a) (x +1)² =

Answer 1

Oie, Td Bom?!

$= (x + 1) {}^{2}$

$= x {}^{2} + 2x \: . \: 1 + 1 {}^{2}$

$= x {}^{2} + 2x + 1$

Att. Makaveli1996