Question

FACTOR COMPLETELY

x^2-7x+7y-y^2

Answer 1

Given:
`{x}^(2) - 7x + 7y - {y}^(2)`

Now factoring them,

`= > (x - y)(x + y) - 7(x - y)`

`= > (x - y)(x + y - 7)`

Therefore, the answer to the question is
`(x - y)(x + y - 7)`