College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Review - Exercises: 69

Answer

$4y^2-49$

Work Step by Step

Use the formula $(a-b)(a+b)=a^2-b^2$ with $a=2y$ and $b=7$ to obtain: $=(2y)^2-7^2 \\=4y^2-49$
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.