Answer
The x was cancelled out incorrectly.
Work Step by Step
When cancelling out the x, you cannot just divide one of the terms in the numerator by x. Thus, the expression should actually be:
$$\frac{2x}{5} + \frac{1}{5x}$$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Appendix A - A Exercises - Page A6: 7
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