Answer
$2x(x-2)(x+2)$
Work Step by Step
Factor out $2x$ to obtain:
$=2x(x^2-4)$
Write 4 as $2^2$ to obtain:
$=2x(x^2-2^2)$
The binomial factor above is a difference of two squares.
RECALL:
A difference of two square can be factored using the formula
$a^2-b^2=(a-b)(a+b)$
Factor the difference of two squares using the formula above with $a=x$ and $b=2$ to obtain:
$=2x(x-2)(x+2)$
