Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.5 - Use of Properties - Problem Set 1.5 - Page 33: 20



Work Step by Step

We start with the given expression: $(-2)(18)(-12)(-5)$ We use the commutative property of multiplication to rearrange the numbers: $(-2)(-5)(18)(-12)$ We multiply from left to right: $(10)(18)(-12)=(180)(12)=-2,160$
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