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# Which of the following is the product of 3 consecutive

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Joined: 19 Feb 2004
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Which of the following is the product of 3 consecutive [#permalink]  19 Feb 2004, 07:32
Which of the following is the product of 3 consecutive numbers if n is the middle number and n > 2?
a. n^3 - n
b. n^2 + 2n +1
c. n^2 - 4
d. n^2 - 1
e. (2n^2 + n)/ (n+1)
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(n-1) * n * (n+1) = n * (n^2-1) = n^3-n
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