Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.7 - Multiplication and Division of Real Numbers - Exercise Set - Page 84: 4



Work Step by Step

The product of two numbers with the same sign can be found by performing the following steps: (1) Multiply their absolute values. $|-9| \cdot |-5| = 9 \cdot 5 = 45$ (2) The product is positive. $-9(-5) = 45$ Thus, the product of the given numbers is $45$.
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