exponent rules http://www.purplemath.com/modules/exponent.htm
FOIL http://www.lessonplanspage.com/MathMultiplyingBinomialsWithFOIL812.htm
Distribute http://math.about.com/od/algebra/a/distributive.htm
add or subtract polynomials http://www.analyzemath.com/polynomials/add_subtract.html