Quadratic Formula.
http://www.bing.com/images/search?q=quadratic+formula&view=detail&id=B9201C118FA0197A2E8819FCAA2E7B55564DA989&first=0&adlt=strict
Steps to the Quadratic Formula.
http://www.bing.com/images/search?q=quadratic+formula&view=detail&id=B9201C118FA0197A2E8819FCAA2E7B55564DA989&first=0&adlt=strict