KnowraDescartes' rule of signsLinked fromLinked fromThe 5 pages that link to Descartes' rule of signs, each with the reason it gives.All 5Related 3Compared with 2Multiplicity of a rootRelated: Its root counts include multiplicity, so repeated roots affect the bounds.Synthetic divisionRelated: It narrows possible roots before candidate values are tested with division.Budan's theoremRelated: It supplies the sign-counting principle that Budan's theorem extends from coefficients to endpoint derivatives.