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quadratic equation

noun, Mathematics.
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).
Origin of quadratic equation
First recorded in 1680-90 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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