Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.

Published by Pearson

ISBN 10: 0-32184-874-8

ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.8 Exponential Notation and Order of Operations - 1.8 Exercise Set - Page 66: 11

Answer

subtraction

Work Step by Step

Using $PEMDAS$ (Parenthesis, Exponent, Multiplication/Division, Addition/Subtraction) in the given expression, $ 18-2[4+(3-2)] ,$ parenthesis (inner most grouping) takes the highest priority. Since the parenthesis involves subtraction, then the first operation to use is $\text{ subtraction .}$

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