Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.6 - Special Products - Exercise Set: 18



Work Step by Step

Using the FOIL method, $(x+4y)(3x-y)=(x)(3x)+(x)(-y)+(4y)(3x)+(4y)(-y)=3x^{2}+(-xy)+12xy+(-4y^{2})=3x^{2}-xy+12xy-4y^{2}=3x^{2}+11xy-4y^{2}$.
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.