Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - 11-4 Adding and Subtracting Rational Expressions - Practice and Problem-Solving Exercises: 12

Answer

$-\frac{3}{2 -b} $

Work Step by Step

Since we already have common denominators, we can add and simplify the numerators, and as needed, combine like terms: $\frac{1}{2 - b} - \frac{4}{2 - b} =\frac{1 - 4}{2 - b} = \frac{-3}{2 -b} =-\frac{3}{2 -b} $
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