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Difficulty Level: At Grade Created by: CK-12
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### Vocabulary Language: English

Difference of Squares

Difference of Squares

A difference of squares is a quadratic equation in the form $a^2-b^2$.
Perfect Square

Perfect Square

A perfect square is a number whose square root is an integer.
Perfect Square Trinomial

Perfect Square Trinomial

A perfect square trinomial is a quadratic expression of the form $a^2+2ab+b^2$ (which can be rewritten as $(a+b)^2$) or $a^2-2ab+b^2$ (which can be rewritten as $(a-b)^2$).

A polynomial in quadratic form looks like a trinomial or binomial and can be factored like a quadratic expression.
Square Root

Square Root

The square root of a term is a value that must be multiplied by itself to equal the specified term. The square root of 9 is 3, since 3 * 3 = 9.

Mar 12, 2013

Jun 04, 2015