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Dictionary

quadrat'ic equa'tion

Math.
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 &nE; 0).

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

quadratic

quadratic form

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