Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 9 - Roots and Radicals - Chapters 1-9 Cumulative Review Problem Set - Page 432: 21



Work Step by Step

Multiplying each term of the first parenthetical expression by the second parenthetical expression and then combining like terms, we obtain: $(-x-1)(5x+7)$ =$-x(5x+7)-1(5x+7)$ =$-5x^{2}-7x-5x-7$ =$-5x^{2}-12x-7$
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