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(-8)^2/3 ? I'm the worst with fractions...
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What is negative 8 to the power of 2/3?
That's what it's asking.
Yes!
-21.3333333
\(\large { \bf a^{\frac{{\color{blue} n}}{{\color{red} m}}} = \sqrt[{\color{red} m}]{a^{\color{blue} n}} \\ \quad \\ \quad \\ (-8)^{\frac{2}{3}}\implies \sqrt[{\color{red}{ 3}}]{(-8)^{\color{blue}{ 2}}} } \)
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That's what I thought but the only answers I have to choose from is: 4, -4, -2 & -1/2
what is the square of -8?
or in other words what is -8(-8)?
\[-8^{2/3}\]
\[\sqrt[3]{(-8)(-8)}=\sqrt[3]{64}=\sqrt[3]{4 \cdot 4 \cdot 4 }=?\] i will let you finish this
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Thank you!!!!
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