Prealgebra (7th Edition)

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

Chapter 1 - Review: 101

Answer

9

Work Step by Step

19-2($3^{2}$-$2^{2}$) =19-2(9-4) =19-2$\times$5 =19-10 =9
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