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Factor Difference of Squares

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Videos, worksheets, solutions, and activities to help Algebra 1 students learn how to factor the difference of squares.

What is Difference of Two Squares?
A binomial in the form a2 - b2 is called the difference of two squares.

How to factor a Difference of Two Squares?
a2 - b2 = (a + b)(a - b)

Factor the Difference of Two Squares
This math lesson covers how to factor the difference of two squares by recognizing the pattern a2 - b2 = (a + b)(a - b). A simple example is provided. A second, extended example includes a multi-step factoring problem.
Example 1: Factor 4x2 - 9y2
Example 2: Factor 5x3 - 45x



Difference of Two Squares
Students learn that a binomial in the form a2 - b2 is called the difference of two squares, and can be factored as (a + b)(a - b).
Example: x2 - 144
Factoring Difference of Squares
Factor:
x2 - 25
16a2 - 81
5r2 - 20 Factoring difference of squares
Factor:
x2 - 49
a2 - 64
4c2 - 16
25m2 - 36

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