Question

How do you factor `3xn^4-27x^3`?

Answer 1

`3x(n^2-3x)(n^2+3x)`

Explanation:

`3xn^4-27x^3`

`=3x(n^4-9x^2)`

`=3x((n^2)^2-(3x)^2)`

`=3x(n^2-3x)(n^2+3x)`