5.2k views
12 votes
What's the real root of
\sqrt[3]{-8}

1 Answer

6 votes

Answer:

-2

Explanation:

You know that 2^3 = 8, so the cube root of 8 is 2. The real cube root will have the same sign as the argument.

∛(-8) = -2

User Armaghast
by
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