Question

Simplify (a+b+c)^2 + (a-b+c)^2​

Answer 1

Step-by-step explanation:

by applying formula of (a-b)(a+b)

(a+b+c)^2−(a−b+c)^2

=(a+b+c+a−b+c){a+b+c−(a−b+c)}

=(2a+2c)(a+b+c−a+b−c)

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

=4ab+4bc

Hope yOu got it....