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Thread: binomial expansion

  1. May 26th 2008, 06:14 AM #1
    outlaw
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    binomial expansion

    find the term independent of x on the expansion of (x^2+1/x)^9
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  2. May 26th 2008, 06:27 AM #2
    earboth
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    Quote Originally Posted by outlaw View Post
    find the term independent of x on the expansion of (x^2+1/x)^9
    Use binomial theorem:

    {9 \choose 3} \cdot (x^2)^3 \cdot (x^{-1})^6=84
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