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: 35



Work Step by Step

$(xy+1)^2$ $\longrightarrow$ substitute =$(2(-5)+1)^2$ $\longrightarrow$ resolve expression in parenthesis =$(-10+1)^2$ =$(-9)^2$ =$81$
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