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Objective: I can factor binomials that are difference of squares.

A difference of squares is a binomial of the form:

a^{2}–b^{2}

Take note that the first term and the last term are both perfect squares.

When we factor a difference of two squares, we will get

a^{2}–b^{2}= (a + b)(a – b)

This is because (*a + b*)(*a – b*) = *a*^{2}– *ab* + *ab – b*^{2} = *a*^{2}– *b*^{2}

Read the lesson on Difference of Squares if you need more information.

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