How to apply descartes rule of signs to find all positive & negative zeros of a polynomial

The video tutorial explains how to determine the possible positive and negative real zeros of a polynomial function using Descartes' Rule of Signs. It involves analyzing the changes in signs of the polynomial's terms to predict the number of positive and negative real zeros. The process includes evaluating the function for both positive and negative inputs and interpreting the results based on the rule. The tutorial provides a step-by-step guide to understanding and applying this mathematical concept.

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