# How do you factor the expression #2x^4 + 16x#?

##### 1 Answer

Mar 10, 2016

#### Explanation:

The idea is to transform the expression in a form where you can use the remarkable factorization identities.

Here we can use Factoring by Grouping to obtain:

Now, the second factor is a sum of cubes, then we can use the following identity:

where:

No more factorization allowed