National Council of Teachers of Mathematics
The Math Forum: Nctm: Ask Dr. Math: Zeros of Polynomials
Math Forum offers an example of how to find the zeros of a polynomial equation.
University of Saskatchewan (Canada)
University of Saskatchewan: Graphing Polynomials
An introduction to the graphs of polynomial functions by looking at the roots of the polynomials, or where it crosses the x-axis. Includes links to pictures of graphs and detailed explanations.
Math Is Fun
Math Is Fun: Polynomials: Bounds on Zeros
A tutorial about polynomials with bounds on zeros.
Khan Academy
Khan Academy: Algebra Ii: Zeros of Polynomials (With Factoring)
Use various methods in order to find all the zeros of polynomial expressions or functions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Khan Academy
Khan Academy: Algebra Ii: Zeros of Polynomials (Factored Form)
Select the graph that best suits a polynomial equation by considering the zeros of the polynomial. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Sophia Learning
Sophia: Zeros and Their Multiplicities: Lesson 1
This lesson demonstrates how to use factoring to find the zeros of a polynomial function, and explains how to tell if a particular zero occurs more than once. It is 1 of 6 in the series titled "Zeros and Their Multiplicities." Includes...