## Intermediate Algebra for College Students (7th Edition)

$2x(x-2)(x+2)$
RECALL: A difference of two squares can be factored using the formula: $a^2-b^2=(a-b)(a+b)$ Factor out the greatest common factor, $2x$, to obtain: $=2x(x^2-4) \\=2x(x^2-2^2)$ The binomial is a difference of two squares. Factor the given difference of two squares using the formula above with $a=x$ and $b=2$ to obtain: $=2x(x-2)(x+2)$