## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$2(a+b)$
The distributive law states that $a(b+c)=ab+ac$ (for real numbers $a$, $b$, and $c$). The greatest common factor for the terms in the given expression is 2. Therefore, we can use the distributive property to factor out 2 from both terms. $2a+2b=2(a+b)$