Discriminant
of a Quadratic
The number D = b^{2} – 4ac determined
from the coefficients of the equation ax^{2} +
bx + c = 0.
The discriminant reveals what type of roots the equation has.
Note: b^{2} – 4ac comes
from the quadratic formula.
See
also
Quadratic
equation, complex
conjugate, multiplicity,
real number, perfect
square, rational number
