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

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

From Textbooks • May 6, 2020

The next example shows the steps for solving an equation in quadratic form.

From Textbooks • May 6, 2020

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

Look for patterns, like the difference of squares, quadratic form, or an expression that lends itself well to substitution.

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