Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.4 - Rational Expressions - 1.4 Exercises - Page 42: 3

Answer

To multiply two rational expressions, we multiply their numerators together and multiply their denominators together. So, $\frac{2}{x + 1}$ $\times$ $\frac{x}{x + 3}$ is the same as $\frac{2x}{(x + 1)(x + 3)}$.

Work Step by Step

$\frac{2}{x + 1}$ $\times$ $\frac{x}{x + 3}$ = $\frac{2 \times x}{(x + 1) \times (x + 3)}$ = $\frac{2x}{(x + 1)(x + 3)}$.
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