# How do you factor #32 - 18x^2#?

##### 1 Answer

Oct 1, 2015

First separate out the common scalar factor

#### Explanation:

The difference of squares identity is:

Using

#32 - 18x^2 = 2(16-9x^2) = 2(4^2 - (3x)^2) = 2(4-3x)(4+3x)#