National Council of Teachers of Mathematics
The Math Forum: Factoring Polynomials
Links to numerous question/answer sessions on factoring polynomials.
Oswego City School District
Regents Exam Prep Center: Factoring the Difference of Two Perfect Squares
Use this site to learn the trick to factoring when the polynomial is a difference of two perfect squares. The site contains examples that are easy to follow.
Help Algebra
Help algebra.com: Factoring Polynomials
A detailed description of how to factor several types of polynomials is presented. Examples are provided to demonstrate the process.
Other
Interactive Algebra: Factoring, Lesson 2 1
An interactive solver allows you to factor quadratic polynomials. The solver provides hints to help you factor before seeing the answer. Note: These quadratics have a leading coefficient of 1.
Other
Interactive Algebra: Factoring Helper
This interactive site allows you to enter a quadratic expression and work through the steps of factoring. Hints and the answer are available to help with the process.