Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 2 - Review - Page 156: 98

Answer

5

Work Step by Step

$y^2+x^2$ $\longrightarrow$ substitute given values =$1^2+(-2)^2$ $\longrightarrow$ resolve exponents =$1+4$ $\longrightarrow$ add =$5$
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