Answer
$26x+13=13(2x+1)$
Work Step by Step
Firstly, factorize $26$ as follows:
$26=(13)\cdot(2)$
Now substitute $26=(13)\cdot(2)$ in $26x+13$
We get, $(13)(2)x+13$
Now use the reverse of Distributive law.
We get, $13(2x+1)$
Thus, the two factors of $26x+13$ are $13$ and $2x+1$.
That is, $26x+13=13(2x+1)$