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Math Help - Combinations problem

  1. #1
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    Combinations problem

    A bag has 3 red, 5 orange, 4 green, and 7 white balls.
    How many distinguishable collections of 5 balls can be drawn from the bag?
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  2. #2
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    Expand the above polynomial. In the expansion the coefficient of x^5 will be the answer.
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