Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.8 Exponential Notation and Order of Operations - 1.8 Exercise Set: 110

Answer

$9t^4-45t^3+17t$

Work Step by Step

Using $a(b+c)=ab+ac$ or the Distributive Property, the given expression, $ 9t^4+7t-5(9t^3-2t) $, is equivalent to \begin{array}{l}\require{cancel} 9t^4+7t-5(9t^3)-5(-2t) \\\\= 9t^4+7t-45t^3+10t .\end{array} By combining like terms, then this simplifies to \begin{array}{l}\require{cancel} 9t^4-45t^3+(7t+10t) \\\\= 9t^4-45t^3+17t .\end{array}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.