Question

(a + b)2 + (a - b)2​

Answer 1

2a^2+2b^2

Step-by-step explanation:

Let's simplify step-by-step.

(a+b)^2 +(a−b)^2

Distribute:

=a^2 +2ab+b^2 +a^2 +−2ab+b^2

Combine Like Terms:

=a2+2ab+b2+a2+−2ab+b2

=(a2+a2)+(2ab+−2ab)+(b2+b2)

=2a2+2b2