Determine the number of positive, negative and complex roots of a polynomial

The video tutorial explains how to determine the possible number of positive, negative, and imaginary zeros of a polynomial using Descartes' Rule of Signs. The instructor demonstrates the process by analyzing sign changes in the polynomial and substituting negative values to find negative zeros. The tutorial concludes with a discussion on the total number of zeros, including complex roots, based on the polynomial's degree.

What new insight or understanding did you gain from this video?