quadratic equation
: any equation containing one term in which the unknown is squared and no term in which it is raised to a higher power
//solve for x in the quadratic equation x2 + 4x + 4 = 0
Recent Examples on the Web
//Gauss’s work applied to quadratic equations — those with exponents no higher than the number 2.
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Quanta Magazine, "Robert Langlands, Mathematical Visionary, Wins the Abel Prize," 20 Mar. 2018
//For the last 50 years, reformers have wanted to teach kids to reason mathematically, to think nimbly about topics like quadratic equations that otherwise come off flat.
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Quanta Magazine, "Meet the New Math, Unlike the Old Math," 5 Oct. 2016
//The circle is a quadratic equation, also known as a degree-two equation.
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Quanta Magazine, "Without a Proof, Mathematicians Wonder How Much Evidence Is Enough," 31 Oct. 2018
//The teenager next door named Lisa, played by Justin, has come to get help with the quadratic equation.
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Kathryn Lindsay, refinery29.com, "R29 Binge Club: Glow Season 2, Episodes 1-10," 29 June 2018
//The key is to fit a quadratic equation to the data.
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Rhett Allain, WIRED, "This Crazy Slide Is Either Evil or Funny," 17 June 2018
//The mere fact that a quadratic equation makes a reasonable fit means that the human is accelerating the whole time.
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Rhett Allain, WIRED, "This Crazy Slide Is Either Evil or Funny," 17 June 2018
First Known Use of quadratic equation
1647, in the meaning defined above
Dictionary Entries near quadratic equation