### Home > CC1 > Chapter 6 > Lesson 6.2.1 > Problem 6-72

6-72.

Simplify each expression.

The image below shows your first step.

Refer to the Math Notes box in this lesson if you need more help.

Complete the circled areas first.

For parts (c) and (d), simplify what is within parentheses first. Then simplify any term with exponents. Then complete any multiplication. Finally, add or subtract the terms.