quadratic equation


quadratic equation

Algebraic equation of particular importance in optimization. A more descriptive name is second-degree polynomial equation. Its standard form is ax2 + bx + c = 0, and its solution is given by the quadratic formula which guarantees two real-number solutions, one real-number solution, or two complex-number solutions, depending on whether the discriminate, b2 4ac, is greater than, equal to, or less than 0.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on quadratic equation, visit Britannica.com.

Seen & Heard

What made you look up quadratic equation? Please tell us what you were reading, watching or discussing that led you here.