Answer:
Discriminant, in mathematics, a parameter of an object or system calculated as an aid to its classification or solution.
The discriminant tells what is the nature of roots the equation has.
For quadratic equation ax² + bx + c = 0, the discriminant is b² − 4ac
Roots are real with at least two equal if the discriminant is zero.
Roots are complex conjugate if the discriminant is less than zero.
Roots are two distinct real root if the discriminant is less than zero.
