Hi Sheila.
The question hinges on your understanding that a square root is equivalent to the exponent one-half:
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The other important part of the question relies on your knowledge that when you raise a term that has an exponent in it to another exponent, you muliply the exponents.
So here's how you would solve a similar question to yours:
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The last line is in exponent form. Now you try it with your question.
Stephen La Rocque.>
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