Question

How do you factor `28a^3b^4+20a^2b^2-16ab^3`?

Answer 1

Let's first take out the numbers

Explanation:

`=4xx(7a^3b^4+5a^2b^2-4ab^3)`

From every term we can take out `ab^2`
`=4ab^2(7a^2b^2+5a-4b)`