Answer:
![5(3w+13)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/tqjp2x3xqx68765kazuspiic8docwjk7rj.png)
Explanation:
1) Prime factorization of 65 and 15 will give us 5 as is Greatest Common Factor
65|5
13|13
1
15|5
3|3
1
2
2) Placing the common factor outside the parentheses. And inside the sum of its quotients.
![(65)/(5)=13\\(15w)/(5)=3w\\](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ej88p5w3t4y5tay0tr83era08q50lpjscz.png)
There you have, a simplified expression:
![5(3w+13)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/tqjp2x3xqx68765kazuspiic8docwjk7rj.png)