Question

How do you factor completely `ax – ay + x^2 – xy`?

Answer 1

`" "(x-y)(a+x)`

Explanation:

These are not always easy to spot!

Group as:`" "(ax-ay)+(x^2-xy)`

Factoring out common values from each bracket

`" "a(x-y)+x(x-y)`

Again factor out but this time factor out `(x-y)`

`" "(x-y)(a+x)`