Answer
73
Work Step by Step
$2y^2-4y+3$ $\longrightarrow$ substitute given values
$=2(-5)^2-4(-5)+3$ $\longrightarrow$ resolve exponent; multiply
=$2(25)-(-20)+3$ $\longrightarrow$ multiply
=$50+20+3$ $\longrightarrow$ solve
=$73$
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: 31
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