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Descartes Rule of Signs

YouTubeThe Organic Chemistry Tutor

Descartes Rule of Signs

This precalculus video tutorial provides a basic introduction into descartes rule of signs which determines the nature and number of the solutions to a polynomial equation. The number of sign changes in f(x) is related to the number of positive real zeros and the number of sign changes in f(-x) is related to the number of negative real zeros ...

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