Question

(a+b+c)(a+b+c)simplify​

Answer 1

Answer:

a2+b2+c2+2ab+2bc+2ca

Step-by-step explanation:

(a+b+c)∗(a+b+c) ,

=(a+b+c)2=(a+b+c)∗(a+b+c)

=a(a+b+c)+b(a+b+c)+c(a+b+c)

=a2+ab+ca+ab+b2+bc+ca+bc+c2

=a2+b2+c2+ab+ab+bc+bc+ca+ca

=a2+b2+c2+2ab+2bc+2ca