quadratic equation

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

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

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

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

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

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