# How do you factor # x^3 - 9x = 0#?

##### 1 Answer

Feb 20, 2016

#### Explanation:

First, notice that the term

#x(x^2-9)=0#

Now, we should consider the quadratic term

Differences of squares factor as follows:

#a^2-b^2=(a+b)(a-b)#

Hence in

#x(x+3)(x-3)=0#

This is completely factored.