Describe how both the rational root Theorem and Descartes rules of sign help you to find zeros of a polynomial? Give me an example that shows how to apply these concepts. How is the fundemental theorem of algebra used in the process to find zeros? Describe with example of your own when you would use long division and synthetic division and how to check polynomial division. A third degree polynomial function f has real zeros -2,1/2 and 3 and it's leading coefficients negative. Write an equation for f sketch the graph of f how many different polynomial functions are possible for f?