Answer
$$\frac{2m}{m-4}$$
Work Step by Step
multiply both numerator and denominator by (-1)
$\frac{(-1)m}{-1(4-m)}+\frac{3m}{m-4}$
$\frac{(-1)m}{m-4}+\frac{3m}{m-4}$
$\frac{(3-1)m}{m-4}$
$$\frac{2m}{m-4}$$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - Chapter R Test Prep - Review Exercises - Page 84: 83
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