Question

Factorise X2-y2+x+y=0

Answer 1

Question :

factorise x² - y² + x + y = 0

Solution :

x² - y² + x + y = 0

⇒(x + y)(x - y) + 1(x + y) = 0

⇒(x + y)(x - y + 1) = 0

∴ Factorised value of x² - y² + x + y = 0 is (x + y)(x - y + 1) = 0.

Answer 2

=>(X+Y)(X-Y)+1(X+Y)=0

=>(X+Y)(X-Y+1)=0

=>$X^2$-$Y^2$+X+Y=0