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Math Help - Binomial Theorem

  1. #1
    Newbie
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    Dec 2008
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    Binomial Theorem

    How would i use the binomial theorem to expand
    (x+a)^4
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  2. #2
    Senior Member I-Think's Avatar
    Joined
    Apr 2009
    Posts
    288
    Binomial Expansion

     (x+y)^n=\sum_{k=0}^n{n \choose k}x^{n-k}y^{k}\quad\quad\quad(1) <br />

    Applying

    (x+a)^4=x^4+4x^3a+6x^2a^2+4xa^3+a^4
    Last edited by I-Think; September 3rd 2009 at 08:38 PM.
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