Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - R.5 Rational Expressions - R.5 Exercises - Page 54: 66



Work Step by Step

Factor out $-1$ in the denominator of the subtrahend to obtain: $=\dfrac{m-4}{3m-4} - \dfrac{5m}{-1(-4+3m)} \\=\dfrac{m-4}{3m-4} - \dfrac{-5m}{3m-4}$ The expressions are similar so subtract the numerators and copy the denominator to obtain: $=\dfrac{m-4-(-5m)}{3m-4} \\=\dfrac{m-4+5m}{3m-4} \\=\color{blue}{\dfrac{6m-4}{3m-4}}$
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.