Source: wikibot/rational-root-theorem
= Rational root theorem
{wiki=Rational_root_theorem}
The Rational Root Theorem is a useful tool in algebra for finding the possible rational roots of a polynomial equation. It states that if a polynomial \\( P(x) \\) with integer coefficients has a rational root \\( \\frac\{p\}\{q\} \\) (in lowest terms), where \\( p \\) and \\( q \\) are integers, then: - \\( p \\) (the numerator) must be a divisor of the constant term of the polynomial.