Question

solution of (x+y)(x-y)=​

Answer 1

$\begin{array}{l}(x+y)(x-y)=x \times x-x \times y+y \times x-y \times y \\\\=x^{2}-x y+x y-y^{2}=x^{2}-y^{2} \\\\\text {Answer: }(x+y)(x-y)=x^{2}-y^{2}\end{array}$

Answer 2

Answer:

It's an identity so remember it from next time

it is

(x-y)(x+y)=x²-y²