Answer:

Explanation:
We have been given a sum
. We are asked to rewrite this sum using distributive property and greatest common factor.
First of all, we will find greatest common factor of 72 and 60.
Factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
We can see that the greatest common factor of 72 and 60 is 12.
We can rewrite our given sum as:

Upon factoring out 12, we will get:

Therefore, our required expression is
.