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

👉 Learn about Descartes' Rule of Signs. Descartes' rule of the sign is used to determine the number of positive and negative real zeros of a polynomial function. Knowing the number of positive and negative real zeros enables also to also know the number of complex zeros of a complex number. Descartes' rule of signs states that the number of positive real zeroes in a polynomial function f(x) is the same or less than by an even number as the number of changes in the sign of the coefficients of the terms of the polynomial function. The number of negative real zeroes of the f(x) is the same as the number of changes in sign of the coefficients of the terms of f(-x) or less than this by an even number. 👏SUBSCRIBE to my channel here: https://www.youtube.com/user/mrbrianm... ❤️Support my channel by becoming a member:    / @brianmclogan   🙋‍♂️Have questions? Ask here: https://forms.gle/dfR9HbCu6qpWbJdo7 🎉Follow the Community:    / mrbrianmclogan   Organized Videos: ✅Rational Zero Test and Descartes Rule of Signs    • Rational Zero Test and Descartes Rule of S...   ✅How to Use the Rational Zero Test    • How to Use the Rational Zero Test   ✅How to Use Descartes Rules of Signs    • How to Use Descartes Rules of Signs   🗂️ Organized playlists by classes here:    / mrbrianmclogan   🌐 My Website - http://www.freemathvideos.com 🎯Survive Math Class Checklist: Ten Steps to a Better Year: https://www.brianmclogan.com/email-ca... Connect with me: ⚡️Facebook -   / freemathvideos   ⚡️Instagram -   / brianmclogan   ⚡️Twitter -   / mrbrianmclogan   ⚡️Linkedin -   / brian-mclogan-16b43623   👨‍🏫 Current Courses on Udemy: https://www.udemy.com/user/brianmclog... 👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: https://www.freemathvideos.com/about-me/ #polynomials #brianmclogan