Answer
84
Work Step by Step
We substitute the value in. We have $3((5)^2-4)+7(5-2)$. Now, we simplify the exponents to get $3(25-4)+7(3)$. We keep simplifying to get $3(21)+7(3)=63+21=84$.
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 1 - Expressions, Equations, and Inequalities - Chapter Test - Page 53: 2
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