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Math Help - Where is my error in this Derivative

  1. #1
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    Where 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.
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  2. #2
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    Re: 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.
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  3. #3
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    Re: 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
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  4. #4
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    Re: Where is my error in this Derivative

    Thank you for help guys, i really appreciate it. Thanks for the link chiro, very useful.
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