Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.4 - Exponents - Problem Set 2.4 - Page 76: 82


$= \frac{9x^{2}-11}{x^{3}}$

Work Step by Step

1) Multiply a fraction with the other denominator to obtain a common denominator between the two fractions. In this case, we only need to multiply the first fraction by $x^{2}/x^{2}$ to get the common denominator of $x^{3}$ 2) Subtract $= \frac{9}{x} - \frac{11}{x^{3}}$ $ = \frac{9x^{2}}{x^{3}} - \frac{11}{x^{3}}$ $= \frac{9x^{2}-11}{x^{3}}$
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.