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Math Help - Factorial N

  1. #1
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    Factorial N

    If Factorial( N ) * Factorial( N +2 ) = Factorial( 2N ), How to find Solution Set of N in the simplest way..Note: (nPr ans nCr may be included in the solution.)

    Please I want a solution simple as much as possible as it's for a high school student.

    Thanks in advance.
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  2. #2
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    Quote Originally Posted by islamdiaa View Post
    If Factorial( N ) * Factorial( N +2 ) = Factorial( 2N ), How to find Solution Set of N in the simplest way..Note: (nPr ans nCr may be included in the solution.)

    Please I want a solution simple as much as possible as it's for a high school student.

    Thanks in advance.
    N = 3 is an obvious solution.
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