Answer
19
Work Step by Step
Plugging in the known value, we obtain:
$$ =(5+2)^2-6(5) \\ = 7^2 - 30 \\ = 19$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - 1.2 Evaluate and Simplify Algebraic Expressions - 1.2 Exercises - Skill Practice - Page 14: 20
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