rational root theorem

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rational root theorem

[′rash·ən·əl ‚rüt ‚thir·əm]
(mathematics)
The theorem that, if a rational number p / q, where p and q have no common factors, is a root of a polynomial equation with integral coefficients, then the coefficient of the term of highest order is divisible by q and the coefficient of the term of lowest order is divisible by p.
References in periodicals archive ?
Yet, her struggle continued, for she was constantly targeted for reasons which had no rational roots and judgment.
He accepted only positive rational roots and ignored all others.
Current research in decision-making has taken a departure from its purely rational roots (Dawes, 1988; Kahneman, Slovic & Tversky, 1982).