Answer
11
Work Step by Step
$3x^2+2x-5$ $\longrightarrow$ substitute
=$3(2^2)+2(2)-5$ $\longrightarrow$ resolve exponent; multiply
$3(4)+4-5$ $\longrightarrow$ multiply
$12+4-5$ $\longrightarrow$ solve
$=16-5=11$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 1 - Section 1.8 - Introduction to Variables, Algebraic Expressions, and Equations - Exercise Set - Page 81: 32
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