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quadratic formula

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

noun

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


Example Sentences

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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

Before students are presented with the quadratic formula, they’re taught a simpler method to solve certain equations.

From Seattle Times • Feb. 10, 2020

We can derive the quadratic formula by completing the square.

From Textbooks • Feb. 13, 2015

TRY IT #8 Solve the quadratic equation 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