Prealgebra (7th Edition)

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

Chapter 8 - Cumulative Review: 2



Work Step by Step

Use the order of operations, PEMDAS, to solve. $7^2-[5^3+(6\div3)]+4\times2\longrightarrow$ parentheses $7^2-[5^3+2]+4\times2\longrightarrow$ bracket/exponent then add $7^2-[125+2]+4\times2\longrightarrow$ $7^2-127+4\times2\longrightarrow$ exponent $49-127+4\times2\longrightarrow$ multiply $49-127+8\longrightarrow$ add/subtract left to right $-70$
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