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quadratic formula

American  
[kwo-drat-ik fawr-myuh-luh] / kwɒˈdræt ɪk ˈfɔr mjə lə /

noun

Mathematics.
  1. the formula for determining the roots of a quadratic equation from its coefficients: .


Example Sentences

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Some quadratic equations must be solved by using the quadratic formula.

From Textbooks Dec. 1, 2021

The quadratic formula learned by generations of math students is difficult to remember, but it can be used to solve quadratic equations where y = 0.

From Seattle Times Feb. 10, 2020

That’s when students turn to the quadratic formula.

From Seattle Times Feb. 10, 2020

For the following exercises, solve the quadratic equation by using the quadratic formula.

From Textbooks Feb. 13, 2015

It’s the famous quadratic formula, which is the crowning achievement of high-school algebra class.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

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