thank god my math teacher didn't teach like that. This is the most confusing explanation of factoring I have ever seen. for the apparently numerous people here

thank god my math teacher didn't teach like that. This is the most confusing explanation of factoring I have ever seen. for the apparently numerous people here who have no idea how to solve this equation generically, read this: http://en.wikipedia.org/wiki/Discriminant http://en.wikipedia.org/wiki/Discriminant or watch this: http://www.khanacademy.org/math/algebra/quadtratics/v/discriminant-of-quadratic-equations http://www.khanacademy.org/math/algebra/quadtratics/v/discri...