Algebra Homework Help : Factorization  Difference of Two Squares
How to factor a difference of two squares ?The difference of two squares is commonly encountered in algebra and can be factored as follows :
a^{2} − b^{2} = (a + b)(a − b)
This is easily verified by expansion as shown below.
Thus, the difference of two squares is a binomial expression where the two terms are perfect squares with one term positive and the other negative.
Example : 32x^{2} − 18 = 2(16x^{2} − 9) = 2(4x + 3)(4x − 3) Practice Exercise for Algebra Module on Difference of Two Squares

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