Algebra: A Combined Approach (4th Edition)

by Martin-Gay, Elayn

Published by Pearson

ISBN 10: 0321726391

ISBN 13: 978-0-32172-639-1

Chapter 6 - Section 6.5 - Factoring by Special Products - Practice - Page 443: 6

Answer

$(2y+9)*(2y-9)$

Work Step by Step

$4y^2-81$ $4y^2=2y*2y$ $81=9*9$ $4y^2-81$ $4y^2-81 = (2y)^2-(9)^2$ $4y^2-81 = (2y+9)*(2y-9)$

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.