Answer
-9 x (-8) = 72
Work Step by Step
Whenever you multiply a negative times a negative you multiply the absolute values of the numbers and obtain a positive result
negative x negative = positive.
-9 x -8 = 72
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.7 Multiplication and Division of Real Numbers - 1.7 Exercise Set - Page 58: 23
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