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Mathematics 21 Online
OpenStudy (anonymous):

How would i write this in exponential form? (square root of 5n)^3

OpenStudy (anonymous):

\[(\sqrt{5n})^3\]

OpenStudy (fibonaccichick666):

so, how do you write a radical as an exponent?

OpenStudy (fibonaccichick666):

just a plain one

OpenStudy (anonymous):

Think... the sqrt(x) is the same thing as x^(1/2)...

OpenStudy (anonymous):

\[(5n ^{1/2})^{3}\] What do you do next?

OpenStudy (anonymous):

multiply the exponents

OpenStudy (anonymous):

did you get 1/2?

OpenStudy (anonymous):

1/2 is the same thing as a sqrt. Type in a graphing calculator 4^(1/2)... you get 2.

OpenStudy (anonymous):

1/3 is the same thing as a cubed-root. 1/4 a 4th root... etc.

OpenStudy (anonymous):

ohh ok.

OpenStudy (anonymous):

\[5n^{3/2}\] is the answer.

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

could you help me with one more real quick?

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