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

Explain how to recognize an equation in quadratic form.

From Textbooks • May 6, 2020

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

We will look at equations involving rational exponents, polynomial equations, radical equations, absolute value equations, equations in quadratic form, and some rational equations that can be transformed into quadratics.

From Textbooks • Feb. 13, 2015

For the following exercises, solve the equation by identifying the quadratic form.

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