Question

expand (-a-b-c) ^2 h​

Answer 1

Answer:

$a^{2} +b^{2} +c^{2} +2ab+2bc+2ac$

Step-by-step explanation:

Using formula, $(a+b+c)^{2} =a^{2} +b^{2} +c^{2} +2ab+2bc+2ac$

Substituting values in this

We get, $(-a)^{2} +(-b)^{2} +(-c)^{2} +2(-a)(-b)+2(-b)(-c)+2(-c)(-a)$

$=a^{2} +b^{2} +c^{2} +2ab+2bc+2ac$ is required answer.