Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 2 - Section 2.3 - Multiplication and Division of Signed Numbers - Exercises - Page 114: 42



Work Step by Step

Multiply the absolute values. Since the number of negative factors is even the product is positive. $(-5)(-9)(+2)=|-5|\times |-9|\times|+2|=5\times9\times2)=90$
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