Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 9 - Section 9.5 - Logarithmic Functions - Exercise Set - Page 572: 90



Work Step by Step

Using the $LCD= (y+1)(y-1) $, the given rational expression, $ \dfrac{5}{y+1}-\dfrac{4}{y-1} ,$ simplifies to \begin{array}{l}\require{cancel} \dfrac{(y-1)(5)-(y+1)(4)}{(y+1)(y-1)} \\\\= \dfrac{5y-5-4y-4}{(y+1)(y-1)} \\\\= \dfrac{y-9}{(y+1)(y-1)} .\end{array}
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.