Use Descartes Rule of signs to determine the number of positive and negative

The video tutorial explains how to determine the positive and negative real zeros of a polynomial using Descartes' Rule of Signs. It covers the concept of sign interchanges between monomials and how these interchanges indicate the number of real zeros. The tutorial also discusses the possibility of having zero real zeros and the implications for imaginary zeros. The process for evaluating negative real zeros is also detailed, emphasizing the importance of sign changes in determining the number of zeros.

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