quadratic equation

noun

, Mathematics.

1. an equation containing a single variable of degree 2. Its general form is ax 2 + bx + c = 0, where x is the variable and a, b, and c are constants ( a ≠ 0).

Word History and Origins

Origin of quadratic equation¹

First recorded in 1680–90

Example Sentences

As a teen, Randy had painted a submarine, an elevator door and the quadratic equation on the walls of his childhood bedroom.

From The Daily Beast

For more exact work, the new concentrations of the three components may be found by solving a simple quadratic equation.

From Project Gutenberg

The ordinary schoolboy would correctly treat this as a quadratic equation.

From Project Gutenberg

An advantage gained was that every quadratic equation, and not some quadratics only, could be spoken of as having two roots.

From Project Gutenberg

Quadratic Equation, an equation involving the square of the unknown quantity.

From Project Gutenberg

All I ask is to live simply and sensibly, but instead of that my existence is transformed into a quadratic equation.

From Project Gutenberg