Elementary Technical Mathematics

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

Chapter 10 - Section 10.4 - Special Products - Exercise: 13

Answer

$16y^2-25$

Work Step by Step

RECALL: $(a+b)(a-b)=a^2-b^2$ Use the formula above to have: $(4y+5)(4y-5) \\=(4y)^2 - 5^2 \\=16y^2-25$
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.