Calculate the exact and approximate solutions to unfactorable quadratic equations using the Quadratic Formula.
Melissa S

In this video, Salman Khan of Khan Academy explains the quadratic equation. Part 2 of 2.
Khan Academy

This video includes sample exercises and stepbystep explanations of shifting quadratic graphs and finding xintercepts (roots) for the California Standards Test.
Khan Academy

Solving Quadratic equations by completing the square
Interactive Math


A helpful scientific calculator that runs in your web browser window.
Holt Online Learning

In this video, Salman Khan of Khan Academy shows you how to solve quadratics by factoring.
Khan Academy

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

How to solve quadratic equations using the completing the square method.
SOS Math

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