### Home > CC1MN > Chapter 10 > Lesson 10.1.2 > Problem 10-20

10-20.

Rewrite each expression with an equivalent expression. Then evaluate each expression for and

*.*

Multiply what is within the parentheses by what lies on the outside.

Substitute in the known values.

Factor out the

.

First combine like terms to write an equivalent expression.

Then substitute in the known values.