College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 4 - Exponential and Logarithmic Functions - Exercise Set 4.3 - Page 478: 111


See below.

Work Step by Step

The student is probably talking about the Quotient Rule which says that $\log_a x-\log_a y=\log_a (\frac{x}{y})$, where division "becomes" subtraction and vice versa.
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.