Homework Help: math

Posted by sonia on Wednesday, April 22, 2009 at 5:35pm.

f(x)= 5x^2+8x+7/x^1/2

i have to find the derivative and when I do this is what i get....

(x^.5)(10x+8)-(5x^2+8x+7)(-.5x^-3/2)/(x)

it says that i am wrong however

please help

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