Elementary Algebra

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

Chapter 5 - Exponents and Polynomials - 5.1 - Addition and Subtraction of Polynomials - Problem Set 5.1: 74

Answer

10n + 10

Work Step by Step

We write an expression to express this problem: (13n - 4) - [(7n - 11) + (-4n - 3)] = Remove round brackets. 13n - 4 - [7n - 11 -4n - 3] = Use the distributive property: 13n - 4 - 7n + 11 + 4n + 3 = Group similar terms. (13n - 7n + 4n) + (-4 + 11 + 3) = Simplify. 10n + 10
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