### Home > CCA > Chapter 7 > Lesson 7.1.6 > Problem 7-75

7-75.

Jack and Jill were working on simplifying the expression below, but they were having some trouble. Then Jill had an idea.

*“Can’t we separate the parts?” *she said. *“That way, it might be easier to tell what we can simplify.”* She rewrote the expression as shown below.

*“Okay,” *said Jack. *“Now we can rewrite each of the parts with negative exponents and simplify.” *

Help Jack and Jill finish simplifying their expression.

Notice that Jill used the Associative Property and put the factors with the same variables next to each other.

Remember,

. What does equal? Use their idea to rewrite and simplify

.