Prealgebra (7th Edition)

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



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 =$73$
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