Answer
90
Work Step by Step
Multiply the absolute values. Since the number of negative factors is even the product is positive.
$(-5)(-9)(+2)=|-5|\times |-9|\times|+2|=5\times9\times2)=90$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
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
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