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Write the expression without using the factorial symbol.

my work:


Thanks in advance.

  • math -


    = (n+1)(n)(n-1)!/((n+1)(n-1)!
    = n

  • math -

    hmm..the answer key says its n(n+1), maybe the answer key is wrong

  • math -

    wait, nevermind, I got it :)
    thanks :P

  • math -

    You know what?

    I looked at "my work" and assumed that was the starting question.

    so here it goes once more

    = (n+1)(n)(n-1)!/n-1)!
    = n(n+1)

    I should be more careful when reading questions.

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