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Math Help - Totaly easy limit :)

  1. #1
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    Totaly easy limit :)

    How can you get 48 from this limit ? lim whn x goes to three of (6x^3-2x^2-5x) ?
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  2. #2
    MHF Contributor Also sprach Zarathustra's Avatar
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    You put x=3 in (6x^3-2x^2-5x)...

    6*3^3-2*3^2-5*3=?

    If you want the direct proof(with epsilon), you can ask...
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  3. #3
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    Quote Originally Posted by Lastdayonearth View Post
    How can you get 48 from this limit ? lim whn x goes to three of (6x^3-2x^2-5x) ?
    Should the 6 be a 3 ?
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  4. #4
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    Quote Originally Posted by Also sprach Zarathustra View Post
    You put x=3 in (6x^3-2x^2-5x)...

    6*3^3-2*3^2-5*3=?

    If you want the direct proof(with epsilon), you can ask...
    I did it the same way, but the answer is not 48 as you can see ? So if this is the right way, then 48 is wrong ?
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