Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.5 - Multiplication of Polynomials - Exercise - Page 225: 14

Answer

$$14a^2+21ab-28a^2b.$$

Work Step by Step

By multiplying each term of the polynomial by the monomial, and then adding the products, we have $$7a(2a+3b-4ab)=7a(2a) +7a(3b)-7a(4ab)\\ =14a^2+21ab-28a^2b.$$
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.