Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - R.5 Rational Expressions - R.5 Exercises: 10

Answer

$\color{blue}{\dfrac{7y-8x^2}{x^2y}}$

Work Step by Step

Make the rational expressions similar by using their LCD of $x^2y$ to obtain: $\dfrac{7}{x^2}-\dfrac{8}{y} \\=\dfrac{7\color{magenta}{(y)}}{x^2\color{magenta}{(y)}}-\dfrac{8\color{magenta}{(x^2)}}{y\color{magenta}{(x^2)}} \\=\dfrac{7y}{x^2y}-\dfrac{8x^2}{x^2y} \\=\color{blue}{\dfrac{7y-8x^2}{x^2y}}$
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.