A stepbystep explanation of the method of completing the square with an example problem.
MathIsFun

In this Early Edge video lesson, you'll learn more about Multiplying Binomials, so you can be successful when you take on highschool Math & Algebra.
The Princeton Review

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 7 of 7.
Khan Academy

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 6 of 7.
Khan Academy

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 4 of 7.
Khan Academy

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 2 of 7.
Khan Academy

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 1 of 7.
Khan Academy

In this video, Salman Khan of Khan Academy explains completing the square.
Khan Academy

Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
Paul's Online Math Notes

Online graphing calculator, useful for drawing out a function to visualize it or find key points.
http://www.coolmath.com
