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Math Help - integers proof

  1. #1
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    integers proof

    Let x be an indeterminate.

    Let  summation(i = 0 to n)a(subscript)i * x^i  be a monic polynomial with integer coefficients and positive degree n.

    Assume that this polynomial has a rational root r.
    Prove that r is an integer.
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  2. #2
    MHF Contributor Bruno J.'s Avatar
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    I would first like to point out that there is no reason for you to use LaTeX if you don't know how to use it! Please take 10 minutes to learn the basics, it will be easier for everybody.

    Please read this post of mine which answers your question in a more general form.
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