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: 61

Answer

-$n^{2}$ + 2n - 17

Work Step by Step

(n - 6) - (2$n^{2}$ - n + 4) + ($n^{2}$ - 7) = Use the distributive property: n - 6 - 2$n^{2}$ + n - 4 + $n^{2}$ - 7 = Combine similar terms. (-2$n^{2}$ + $n^{2}$) + (n + n) + (-6 - 4 - 7) = Simplify. -$n^{2}$ + 2n - 17
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