Elementary Algebra

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

Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set: 9

Answer

-27a - 7

Work Step by Step

-(a + 4) + 5(-a - 2) - 7(3a - 1) = Use the distributive property to remove parenthesis: -a - 4 - 5a - 10 - 21a + 7 = Group similar terms. (-a - 5a - 21a) + (-4 - 10 + 7) = -27a - 7
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