I have done this equation numerous times and i keep getting the same answer. Can someone tell me where my mistake is? I keep getting a negative result and it should be positive. Also in step (6) is that how you get the GCD?

Thank you.

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- Oct 28th 2012, 06:59 PMpeteniceWhere is my error in this Derivative
I have done this equation numerous times and i keep getting the same answer. Can someone tell me where my mistake is? I keep getting a negative result and it should be positive. Also in step (6) is that how you get the GCD?

Thank you. - Oct 28th 2012, 07:06 PMphys251Re: Where is my error in this Derivative
Uh, no it's not. Your solution is correct.

BTW, in step #3, you ought to indicate which pieces you're going to take the derivative of. - Oct 28th 2012, 07:09 PMchiroRe: Where is my error in this Derivative
Hy petenice.

Your answer is not wrong:

http://www.wolframalpha.com/input/?i=d%2Fdx+%28+%28-3x+-+4%29%2F%28x%2B2%29^%281%2F2%29%29 - Oct 28th 2012, 07:21 PMpeteniceRe: Where is my error in this Derivative
Thank you for help guys, i really appreciate it. Thanks for the link chiro, very useful.