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Math Help - Estimate the zeros

  1. #1
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    Estimate the zeros

    Hi!
    Estimate the zeros of f(x)=x^4-3x^2-x+2
    I know the answer is x=0.718 and x=1.702 I just don't know how to get that. Help!!
    Last edited by caitlinn31; December 5th 2012 at 09:25 PM.
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  2. #2
    MHF Contributor MarkFL's Avatar
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    Re: Estimate the zeros

    What course are you taking? I ask because there are some wonderful techniques using differential calculus to approximate the roots of a function.
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  3. #3
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    Re: Estimate the zeros

    I'm in pre-calculus. I talked to my professor and he said plug it into a calculator.
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