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