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OpenStudy (anonymous):

im very new to algebra
\[\sqrt[3]{?-125}\] so thats not a real number?

OpenStudy (anonymous):

yes don't get cube roots confused with square roots

OpenStudy (anonymous):

\[\sqrt[3]{-125}=-5\] because
\[(-5)^3=-125\]

OpenStudy (anonymous):

you can take the cube root of a negative number. you just cannot take a square root, fourth root, or any even root of a negative number and get a real number back

OpenStudy (anonymous):

The two interesting cases of 0^n are:
\[0^0;0^{\infty}\]
Both of those are indeterminate.
But as long as n is non zero and finite then 0^n=0.

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