# How do you factor completely #2x^2-8#?

##### 2 Answers

Mar 5, 2018

#### Explanation:

Mar 5, 2018

#### Explanation:

#"take out a "color(blue)"common factor of 2"#

#rArr2(x^2-4)#

#x^2-4larrcolor(blue)"is a difference of squares"#

#â€¢color(white)(x)a^2-b^2=(a-b)(a+b)#

#rArrx^2-4=(x-2)(x+2)#

#rArr2x^2-8=2(x-2)(x+2)#