The discriminant of the quadratic equation following a x 2 b x c 0 is equal to b 2 - 4 a c. The calculator has a feature which allows the calculation of the discriminant online of quadratic equations. Therefore the discriminant formula for the general quadratic equation is Discriminant D b2 4ac.
X2 2 x 4 0.
Use the quadratic formula. When the discriminant is zerox b0 2a x b 0 2 a the quadratic equation has one solution. In a quadratic equation the discriminant helps tell you the number of real solutions to a quadratic equation. Determine the value of the discriminant and name the nature of the solution for the followingx2 2x - 63Remember.