Derivative of the function: (x^2+7)/sqrt of x

Having trouble with this on my homework. I don't understand how to work with derivatives of square roots. Thank you so much.
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1 Answer

(x2+7)/√x=x3/2+7x-½.

Derivative is 3(√x)/2-(7/2)x-3/2=3(√x)/2-7/(2√x3) or 3(√x)/2-7√x/(2x2).

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