Question

the formula of (a+b+c)² is

Answer 1

(a+b+c)²

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

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

c(a+b+c).

=(a²+ab+ac)+(ab+b²+bc)+(ac+bc+c²).

=a²+b²+c²+2ab+2bc+2ac.

Answer 2

Heya!

Here is yr answer......


=> (a+b+c)²

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

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

=> a²+ab+ac+ab+b²+bc+ac+bc+c²

=> a²+b²+c²+2ab+2bc+2ac


Hope it hlpz...