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: 54

Answer

$6k^3-3k^2-2k$

Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (4k^3+k^2+k)+(2k^3-4k^2-3k) ,$ simplifies to \begin{array}{l}\require{cancel} 4k^3+k^2+k+2k^3-4k^2-3k \\\\= (4k^3+2k^3)+(k^2-4k^2)+(k-3k) \\\\= 6k^3-3k^2-2k .\end{array}
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