Multiplying Binomials

Austin Peay and Xavier Prow

What is a binomial?


A binomial is the sum of two monomials. It has two unlike terms.

Formulas for Multiplying Binomials

  • Sum and difference: (a + b)(ab) = a^2 – b^2

  • Binomial squared: (a + b)^2 = a^2 + 2ab + b^2

  • Binomial cubed: (a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3

Foil Method

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Distribution Method

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