Question

How do you factorize `20p + 15pq - 60q^2-80q` completely?

Answer 1

`5(4+3q)(p-4q)`

Explanation:

`= 20p-80q+q(15p-60q)`
`= 20(p-4q) + 15q(p-4q)`
`= (20+15q)(p-4q)`
`= 5(4+3q)(p-4q)`