cubic equation
noun
: a polynomial equation in which the highest sum of exponents of variables in any term is three
Example Sentences
Recent Examples on the Web Thus, Cardano was able to solve every cubic equation. 
Quanta Magazine, 30 June 2022 All three of these numbers satisfy the cubic equation x3 – 1 = 0. Quanta Magazine, 23 Sep. 2021 This is a cubic equation with rational coefficients. Quanta Magazine, 22 July 2021 But cubic equations have defied mathematicians’ attempts to classify their solutions, though not for lack of trying. Quanta Magazine, 9 July 2013
Quanta Magazine, 30 June 2022 All three of these numbers satisfy the cubic equation x3 – 1 = 0. Quanta Magazine, 23 Sep. 2021 This is a cubic equation with rational coefficients. Quanta Magazine, 22 July 2021 But cubic equations have defied mathematicians’ attempts to classify their solutions, though not for lack of trying. Quanta Magazine, 9 July 2013 Word History
First Known Use
circa 1751, in the meaning defined above