![CPM Homework Banner](/dist/7d633b3a30200de4995665c02bdda1b8.png)
Home > CC3 > Chapter 2 > Lesson 2.1.2 > Problem 2-19
2-19.
Remember that one meaning of the word “evaluate” is to replace a variable with a number and to calculate the result. For example, evaluating the expression
Evaluate the expressions below for the given values.
if Substitute
for . Simplify the terms and combine them.
if and Follow the steps in part (a).
Put everything you substituted inside parentheses so you do not lose track of your negative signs.
if and Follow the steps in part (a).
if and Follow the steps in part (a).