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Math Help - multiple roots polynomial

  1. #1
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    multiple roots polynomial

    5x^3-x+2
    Does this polynomial have multiple roots?
    How would I check if a polynomial has multiple roots or not?
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  2. #2
    MHF Contributor Also sprach Zarathustra's Avatar
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    Only one root... use calculus theorems...
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  3. #3
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    If f(x) = x^3+px+q, then the discriminant \Delta = -4p^3-27q^2.
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