Question

x²-y²+2x-2y factories completely

Answer 1

not sure if u have to do the same thing as you know
(x+y)(x-y) + 2 (x-y)

Answer 2

Hi there !!

Given,

To factorise x² - y² + 2x - 2y

Using the 3rd identity, ie, a²- b² = (a - b)(a + b) and taking 2 as common factor in 2x - 2y,
We have,

$(x - y)(x + y) + 2(x - y)$

Taking (x - y) as common factor,
we have,

$(x - y)(x + y + 2)$
is the answer.