Question

Desenvolver : (a+b+c)² ?​

Answer 1

Resposta:

(a + b + c)² = (a + b + c).(a + b + c)

(a + b + c)² = a² + ab + ac + ab + b² + bc + ac + bc + c²

(a + b + c)² = a² + b² + c² + 2ab + 2ac + 2bc

Answer 2

Oie, tudo bom?

$= (a + b + c) {}^{2} \\ \boxed{ = a {}^{2} + b {}^{2} + c {}^{2} + 2 \: . \: ab + 2 \: . \: ac + 2 \: . \: bc }$

Att. NLE Top Shotta