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Math Help - constant in expansion?

  1. #1
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    constant in expansion?

    i hope this is in the right forum...

    find the term in the expansion of (w^2 + 2/w)^9 that is a constant.

    i can't remember the formula/technique for finding constants...help please?
    thank you!
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  2. #2
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    Have a read of this.

    http://www.wtamu.edu/academic/anns/m...4_bi_theor.htm

    Look for the coefficent of w^0
    Last edited by pickslides; January 4th 2010 at 07:06 PM. Reason: left out info
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