Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “quadratic equation”

See all translations

quadratic equation

noun [C] uk   /kwɒdˌræt.ɪk.ɪˈkweɪ.ʒən/ us    /-ˌræt̬-/
an equation that includes an unknown value that is multiplied by itself only once, and does not include an unknown value multiplied by itself more than once: In the quadratic equation, 2y2+3y=14, y=2 or y=-3½.
Translations of “quadratic equation”
in Spanish ecuación cuadrática…
in Chinese (Traditional) 二次方程式…
in Chinese (Simplified) 二次方程式…
(Definition of quadratic equation from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of quadratic equation?
Add Cambridge dictionaries to your browser to your website

Definitions of “quadratic equation” in other dictionaries

Word of the Day

escapism

a way of avoiding an unpleasant or boring life, especially by thinking, reading, etc. about more exciting but impossible activities

Word of the Day

Lies, lies, lies!

by Kate Woodford,
February 25, 2015
​​​ According to sociologists (=people who study the relationships between people living in groups), we are good at lying. As a species, we have developed a remarkable ability to deceive each other (= persuade each other that something false is true). Being able to say things that are not true can help with

Read More 

showrooming noun

February 23, 2015
the activity of examining a product in a physical store and then making the purchase with an online retailer Amazon’s new smartphone is specifically designed to make showrooming fast and easy.

Read More