Question

it's a square + to a square + b square

Answer 1

did you mean

a^×+a^2+b^2
=2a^2+b^2

Answer 2

${a}^{2} + 2 {a}^{2} + {b}^{2} \\ = 3 {a}^{2} + {b}^{2}$
hope this helps.....
if correct....
mark as brainlist plzz