Answer
Yes, for instance:
$(\sqrt 2)^2=2$, and 2 is a rational number.
Work Step by Step
The square of any number squared is the number itself.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - Concept Byte - Page 45: 18
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