Click here if you'd like a refresher on Exponent Basics.

Video Tutorials
Tired of hairy exponent expressions? Feel compelled to clean them up? Well, this tutorial might just give you the tools you need. If you know a bit about exponents, you'll learn a ton more in this tutorial as you learn about the rules for simplifying exponents.
Watch the series of Khan Academy Level 2 Exponents. This series of videos will give you a solid foundation for understanding negative and fractional exponents. It includes the following topics: