Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises: 9

Answer

-8

Work Step by Step

Replace r with 0. Replace s with -2. 2(0) + 4(-2) Using the order of operations, do all multiplications first. Then addition. = 0 + (-8) Now, change addition to subtraction. =0-8 = -8
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