Question

(a^2 + b^2 ) (-a^2+b^2)

Plzz!!! Do it for me!!

Answer 1

this is the answer.....

Answer 2

$a {}^{2} ( - a {}^{2} + b {}^{2} ) + b {}^{2} ( - a {}^{2} + b {}^{2} ) \\ - a {}^{4} + a {}^{2} b {}^{2} + - a {}^{2} b {}^{2} + b {}^{4} \\ b {}^{4} - a {}^{4} ans$