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.
$3^{2}-7^{2} \\\\ =9-49=-40$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
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 - Page 114: 61
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