# quadratic equation

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noun Mathematics.

an equation containing a single variable of degree 2. Its general form is ax2 + bx + c = 0, where x is the variable and a, b, and c are constants (a ≠ 0).

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## Origin of quadratic equation

First recorded in 1680–90

## Words nearby quadratic equation

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

## How to use quadratic equation in a sentence

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