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In a quadratic equation AX^2+BX+C=0, the expression B^2-4AC is called the discriminant. If the
discriminant is greater than zero, the quadratic equation has two distinct real solutions. If the
discriminant is equal to zero, the quadratic equation has one real solution. If the discriminant
is less than zero, the quadratic equation has two complex solutions ( conjugates of each other )
In this video, we do a couple of examples.
Prof. Serna. Math, Statistics & Physics Tutor. Miami.
10300 SW 72nd Street, Suite 460-5, Miami, FL 33173.