Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Appendix A - Basic Algebra Review - A Exercises - Page A-14: 29



Work Step by Step

Step 1: $-5(-4)$ Step 2: $-5\times-4$ Step 3: $-1\times5\times-1\times4$ Step 4: $-1\times-1\times5\times4$ Step 5: $1\times20$ Step 6: $20$
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