Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Section 4.2 - Adding and Subtracting Polynomials - 4.2 Exercises: 48

Answer

$-m^{2}n-5mn^{2}$

Work Step by Step

We are given the polynomial $6m^{2}n-8mn^{2}+3mn^{2}-7m^{2}n$. We can use the distributive property to combine like terms. $6m^{2}n-8mn^{2}+3mn^{2}-7m^{2}n=(6-7)m^{2}n+(-8+3)mn^{2}=(-1)m^{2}n+(-5)mn^{2}=-m^{2}n-5mn^{2}$
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