# quadratic equation

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Related to quadratic equation: quadratic formula

## quadratic equation

*n.*

An equation that employs the variable

*x*having the general form*ax*0, where^{2}+ bx + c =*a, b,*and*c*are constants and*a*does not equal zero; that is, the variable is squared but raised to no higher power.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## quadrat′ic equa′tion

*n.*

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).[1680–90]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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Noun | 1. | quadratic equation - an equation in which the highest power of an unknown quantity is a squareequation - a mathematical statement that two expressions are equal |

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