Answer
$(3x-2)(3x+2)$
Work Step by Step
The given binomial can be written as:
$=(3x)^2-2^2$
Note that the binomial above is a difference of two squares.
RECALL:
$a^2-b^2=(a-b)(a+b)$
Factor the difference of two squares using the formula above where $a=3x$ and $b=2$ to obtain:
$=(3x-2)(3x+2)$
