Question

How do you factor `x^3y^2-xy^4`?

Answer 1

I found: `xy^2(x-y)(x+y)`

Explanation:

you can collect `xy^2` and remember that `a^2-b^2=(a+b)(a-b)` to get:
`xy^2(x^2-y^2)=xy^2(x-y)(x+y)`