Binomial Coefficients
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Jay's Corner  
A binomial is an algebraic expression with two terms, like x + y. When we multiply out the powers of a binomial we can call the result a binomial expansion. Multiplying out an expression is just a matter of using the distributive laws of arithmetic, a(b+c) = ab + ac and (a + b)c = ac + bc. In the examples a few binomial expansions are multiplied out, without combining like terms or even writing products as powers. To make things easier to see, different colors for the terms in each factor have been used...  


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