Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 6 - Radical Functions and Rational Exponents - 6-1 Roots and Radical Expressions - Lesson Check - Page 364: 2


$-0.4$ and $0.4$

Work Step by Step

Note that $0.4^2=0.16$, therefore $0.4$ is a real square root of $0.16$, and $(-0.4)^2=0.16$, therefore $-0.4$ is a real square root of $0.16$.
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