DISCRIMINANT

noun

17 Scrabble

21 WWF

D 2

I 1

S 1

C 3

R 1

I 1

M 3

I 1

N 1

A 1

N 1

T 1

Definition

An expression that gives information about the roots of a polynomial; for example, the expression D = b2 - 4ac determines whether the roots of the quadratic equation ax2 + bx + c = 0 are real and distinct (D > 0), real and equal (D = 0) or complex (D < 0).