Question

$compute \: (x + y) {}^{2} - (x - y) {}^{2} using \: appropriate \: identities$


pls answer plsss

Answer 1

(x+y)^2 - (x+y)^2
= x^2 + y^2 + 2xy - x^2 - y^2 + 2xy
= 4xy
Therefore, your answer is 4xy.