Question

Factor completely .Show steps
x²-y²-2x+2y

Answer 1

`({x}^(2) - {y}^(2) ) - 2x + 2y \\ = (x - y)(x + y) - 2x + 2y \\ = (x - y)(x + y) - 2(x + y) \\ = (x + y)(x - y - 2)`