quadratic form

American  

noun

Mathematics.

1. a polynomial all of whose terms are of degree 2 in two or more variables, as 5 x 2 − 2 xy + 3 y 2 .

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Etymology

Origin of quadratic form

First recorded in 1855–60

Example Sentences

Identify a substitution that will put the equation in quadratic form.

From Textbooks • May 6, 2020

Substitutions for rational exponents can also help us solve an equation in quadratic form.

From Textbooks • May 6, 2020

Here, we will discuss equations that are in quadratic form, and rational equations that result in a quadratic.

From Textbooks • Feb. 13, 2015

Equations in quadratic form are easy to spot, as the exponent on the first term is double the exponent on the second term and the third term is a constant.

From Textbooks • Feb. 13, 2015

Solve by three methods—formula, factoring, and completing the square: Review equations in the quadratic form and solve: 2.

From A Review of Algebra by Rivenburg, Romeyn Henry