Decartes' Rule Of Signs

Decartes' Rule Of Signs

Author: Graham Pardun

This lesson demonstrates how to use Decartes' Rule Of Signs to determine the number of real roots of a given polynomial function.

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Kickin' It Old-School With Descartes' Rule of Signs

A few centuries ago, a French mathematician and philosopher named Rene Descartes came up with a shortcut for determining how many roots a polynomial might have--here's how it works!