Question

B. Simplify: (x + a)2 + (x - a)2​

Answer 1

`2x^2 + 2a^2`

Explanation:

`(x + a)^2 + (x - a)^2`

Lets expand it.

`=> x^2 + a^2 + 2ax + x^2 + a^2 - 2ax`

`=> x^2 + x^2 + a^2 + a^2`

`=> 2x^2 + 2a^2`