Dictionary

quadratic equation en · NOUN

Pronunciation

• (Southern-England) audio

Meanings

1. A polynomial equation of the second degree; an equation that can be rearranged in standard form as ax²+bx+c=0, where x is an unknown value, a, b, and c are known numbers, and where a does not equal zero.
   • The arid argot of the estate agent’s schedule becomes obsolete when the task is to sell a pub-restaurant at the edge of a Highland wilderness. It’s like trying to describe the glory of the Lake District with a quadratic equation. 2018 November 25, Kevin McKenna, “Remote island pub for sale ... just don’t expect a quiet life”, in The Guardian:
   • If there’s one skill we absolutely should have been taught in school, it's how to craft the perfect dating app profile. I mean, if I can still remember the quadratic equation, surely I should have been schooled in the art of snagging a date. But alas, our education system seems to think finding our soulmates isn't as essential as algebra. 2024 April 8, Lydia Wang, Morgan Sullivan, Rachel Varina, “24 Best Hinge Prompts to Actually Help Your Matches Get to Know You”, in Cosmopolitan:
   • The quadratic equation has frustrated math students for millenniums. […] If, while watching the Super Bowl, you had wanted to estimate how far a pass thrown by Patrick Mahomes traveled through the air, you would have been solving a quadratic equation. 2020 February 5, Kenneth Chang, Jonathan Corum, “This Professor’s ‘Amazing’ Trick Makes Quadratic Equations Easier”, in The New York Times:
   • When I was seven years old at a new school, I cried all day, every day. When I was 14 years old, I cried in maths lessons. An improvement, I guess. It wasn’t that I was bad at maths; I knew my way around a quadratic equation, let me tell you. 2015 September 8, Katie Everson, “Why I've written a book for teenagers about taking drugs”, in The Guardian:

Forms

Coordinates

linear equation · cubic equation

Translations (31)

kl andengradsligningi (second-degree equation) · tl dawaking tumbasan (second-degree equation) · pt equação do segundo grau (second-degree equation) · cmn 二次方程 (second-degree equation) · it equazione di secondo grado (second-degree equation) · ru квадра́тное уравне́ние (second-degree equation) · tr ikinci dereceden denklem (second-degree equation) · ko 이차 방정식 (second-degree equation) · it equazione quadratica (second-degree equation) · ca equació quadràtica (second-degree equation) · tr ikinci derece denklem (second-degree equation) · ur دو ضربی مساوات (second-degree equation) · nl vierkantsvergelijking (second-degree equation) · nl tweedegraadsvergelijking (second-degree equation) · mi whārite pūrua (second-degree equation) · pt equação quadrática (second-degree equation) · ja 二次方程式 (second-degree equation) · th สมการกำลังสอง (second-degree equation) · hy քառակուսի հավասարում (second-degree equation) · cs kvadratická rovnice (second-degree equation) · hi द्विघात समीकरण (second-degree equation) · hu másodfokú egyenlet (second-degree equation) · fr équation du second degré (second-degree equation) · pl równanie kwadratowe (second-degree equation) · fi toisen asteen yhtälö (second-degree equation) · ro ecuație de gradul al doilea (second-degree equation) · de quadratische Gleichung (second-degree equation) · es ecuación cuadrática (second-degree equation) · da andengradsligning (second-degree equation) · ro ecuație pătratică (second-degree equation) · es ecuación de segundo grado (second-degree equation)