A quadratic polynomial is a polynomial of degree 2. A univariate quadratic polynomial has the form . An equation involving a quadratic polynomial is called a quadratic equation. A closed-form solution known as the quadratic formula exists for the solutions of an arbitrary quadratic equation.
See alsoQuadratic, Quadratic Equation, Quadratic Formula
Portions of this entry contributed by David Terr
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Terr, David and Weisstein, Eric W. "Quadratic Polynomial." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/QuadraticPolynomial.html