Using the Quadratic Formula
Lecture no. 15 from the course: Algebra II
Taught by Professor James A. Sellers | 30 min | Categories: The Great Courses Plus Online Mathematics Courses
When other approaches fail, one tool can solve every quadratic equation: the quadratic formula. Practice this formula on a wide range of problems, learning how a special expression called the discriminant immediately tells how many real-number solutions the equation has.