Question

Prove x^2-y2=x+y × x-y

Answer 1

(x+y)*(x-y)

=x^2+xy-xy-y^2

=x^2-y^2.

MARK BRAINLIEST.

Answer 2

RTP: x^2+y^2=(x+y)(x-y)

RHS=(x+y)(x-y)=x(x-y)+y(x-y)=x^2-xy+yx-y^2=x^2+y^2=LHS

(proved)