# How do I factorise x(x + y)^2 - xy(x + y) and (x + y)^2 - 10(x + y)+25?

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I also need help to check if x^2(a - b) + y^2(b - a) = (a - b)(x + y)(x - y) and if ax - ay - bx + by = (x - y)(a - b)

Thanks!

I also need help to check if x^2(a - b) + y^2(b - a) = (a - b)(x + y)(x - y) and if ax - ay - bx + by = (x - y)(a - b)

Thanks!

##### 1 Answer

May 11, 2018

Please see the explanation.

#### Explanation:

Using: