Linked from

The 15 pages that link to Discriminant (polynomial), each with the reason it gives.

• Quadratic equationBroader topic: Its sign predicts whether the quadratic has two, one, or no real roots.

• Invariant theoryBroader topic: Discriminants are classical invariants used to detect special forms and singular cases.

• Quadratic formulaBroader topic: Its sign tells whether the formula yields two real roots, one repeated root, or complex roots.