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Math Help - [SOLVED] Am I right? A simple derivative question

  1. #1
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    [SOLVED] Am I right? A simple derivative question

    Use the definition of the derivative to find f '(x)

    f(x)=6x^3-7x

    my answer is 18x^2+18xh-7
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Soul to soul View Post
    Use the definition of the derivative to find f '(x)

    f(x)=6x^3-7x

    my answer is 18x^2+18xh-7
    h goes to zero in the definition, does it not?
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  3. #3
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    yes, it does

    and I didn't get this one:
    Use the definition of the derivative to find f '(x): f(x)= square root of 3x+2

    can somebody help me?
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  4. #4
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    You got the original question correct. Make a new thread for a new problem please.
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