Algebra 1 Lesson #62 How to Solve Quadratic Equations Using the Quadratic Formula

In this lesson, we will learn how to derive the quadratic formula by completing the square. From there, we will learn how to solve any quadratic equation using the quadratic formula. We will also discuss the discriminant or part under the square root symbol. The discriminant tells us whether we have two real solutions, one solution, or two non-real complex solutions.