Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises: 61

Answer

-40

Work Step by Step

We first follow the instructions to plug 3 in for b and 7 in for c. We then use order of operations, raising 7 to the second power and 3 to the second power before subtracting. $3^{2}-7^{2} \\\\ =9-49=-40$
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