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## Definition of *quadratic formula*

**:**a formula that gives the solutions of the general quadratic equation ax

^{2}+ bx + c = 0 and that is usually written in the form x = (-b ± √(b

^{2}− 4ac))/(2a)

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Merriam-Webster unabridgedWords at Play

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quadratic formula## The first known use of

quadratic formulawas in 1804See more words from the same year