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 4 - Polynomials - 4.5 Multiplication of Polynomials - 4.5 Exercise Set: 29

Answer

$3a^2-27a$

Work Step by Step

Using $a(b+c)=ab+ac$ or the Distributive Property, the given expression, $ (a-9)3a $, is equivalent to \begin{array}{l}\require{cancel} 3a(a-9) \\\\= 3a(a)+3a(-9) \\\\= 3a^2-27a .\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.