Answer
-4x
Work Step by Step
We factor the expressions in order to cancel out common factors in the numerator and the denominator:
Step 1: $\frac{4x^{3}-4x}{1-x^{2}}$
Step 2: $\frac{4x(x^{2}-1)}{-1(x^{2}-1)}$
Step 3: $\frac{4x}{-1}$
Step 4: $-4x$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 7 - Algebraic Fractions - 7.1 - Simplifying Algebraic Fractions - Problem Set 7.1 - Page 281: 23
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