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 85: 31



Work Step by Step

Multiply two numbers at a time from left to right. Two numbers with opposite signs have a negative product while two numbers with the same sign have a positive product. $5(-3)(-1)(2)(3)$ $-15(-1)(2)(3)$ $15(2)(3)$ $30(3)=90$
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