Where is my error in this Derivative

Oct 2012
63
0
Houston
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.
 

Attachments

Jun 2012
220
20
Georgia
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.
 

chiro

MHF Helper
Sep 2012
6,608
1,263
Australia
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 2012
63
0
Houston
Thank you for help guys, i really appreciate it. Thanks for the link chiro, very useful.