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: 62

Answer

-$n^{2}$ + 14n - 10

Work Step by Step

(3n + 4) - ($n^{2}$ - 9n + 10) - (-2n + 4) = Use the distributive property: 3n + 4 - $n^{2}$ + 9n - 10 + 2n - 4 = Group similar terms. -$n^{2}$ + (3n + 9n + 2n) + (4 - 10 - 4) = Simplify. -$n^{2}$ + 14n - 10
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