Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - Study Summary - Practice Exercises - Page 74: 25

Answer

$21$

Work Step by Step

To multiply integers, multiply the numbers ordinarily. If the signs of the 2 factors are the same, the product is positive. If the signs of the two factors are different, the product is negative. Hence, the product of the given expression, $ -3(-7) ,$ is $ 21 .$
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