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

## Answer this Question

## Related Questions

- Calc - a) y =ln(x-1) find dy/dx=? b) y=3 ln x - ln (1/x) where x >0, dy/dx...
- Derivatives- Math - Can someone explain how to find the derivative of : 1. y= 5...
- Math - derivative of sinusoidal (check) - a) Find a function y=f(x) that ...
- CAL- derivative - Find the derivative; y= x^3(5x-1)^4 So this is my answer y'=...
- Math - The problem is ; 10x+8-y X= 2 Y=5 Every time I do it I get 23 but my ...
- Calculus - If x = t^2 + 1 and y = t^3, then d^2y/dx^2 = I know I can solve for t...
- math - A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that ...
- MATH - 5x-4y= -3 2x + 7y= 5 How to solve this linear system shown above by using...
- math - Find the derivative of y=3x-2(4^x) Here is my attempt: Derivative of 3x ...
- Calculus - Find the extreme value(s) of the function f(x)=1/(1-x^2). I tried, ...