discriminant of a quadratic

Discriminant of a Quadratic

The number D = b2 – 4ac determined from the coefficients of the equationax2 + bx + c = 0. The discriminant reveals what type of roots the equation has.

Note: b2 – 4ac comes from the quadratic formula.




See also

Quadratic equation, complex conjugate, multiplicity, real number, perfect square, rational number

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