Question

How do you factor `12n^3 - 8n`?

Answer 1

`4n(3n^2 - 2)`

Explanation:

Always look for a common factor first. In this case `4n`

Divide each term by `4n` and write the answers (quotients)in the bracket. I often think about them as "the left-overs".

`4n(3n^2 - 2)`