Question

A expreçao (x+2)³ equivale a

Answer 1

Oie, Td Bom?!

$= (x + 2) {}^{3}$

$= x {}^{3} + 3x {}^{2} \: . \: 2 + 3x \: . \: 2 {}^{2} + 2 {}^{3}$

$= x {}^{3} + 6x {}^{2} + 3x \: . \: 4 + 8$

$= x {}^{3} + 6x {}^{2} + 12x + 8$

Att. Makaveli1996