Answer
$2(a+b)(3x-2y)$
Work Step by Step
The factor $(a+b)$ is common to both terms.
Factor out $a+b$ to obtain:
$=(a+b)(6x-4y)$
The terms of the binomial $6x-4y$ has a common factor of $2$.
Factor out $2$ to obtain:
$=(a+b)((2)(3x-2y)
\\=2(a+b)(3x-2y)$