In this video you will learn how to find the product of a sum and a difference. A sum and difference is simply whether the operation in a binomial is addition or subtraction. Addition is a sum and subtraction is a difference. When you multiply them, you use the FOIL method, which is simply distributing the first term of the first binomial to the two terms in the second binomial, and then repeating with the second term of the first term. Finally you combine all like terms, and you have your product of a sum and a difference.
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