Answer
$13(1+x)$
Work Step by Step
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 13. Therefore, we can use the distributive property to factor out 13 from both terms.
$13+13x=13(1+x)$
