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

The video tutorial explains Descartes' Rule of Signs, which helps determine the number of positive and negative real zeros in a polynomial. The instructor demonstrates how to analyze sign variations in a polynomial to find possible positive and negative real zeros. By evaluating the polynomial with negative inputs, the instructor shows how to determine the number of negative real zeros. The tutorial concludes with a summary of the findings and encourages viewers to engage with the content.

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