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December 17, 2014

December 17, 2014

Posted by **Theo** on Friday, May 27, 2011 at 11:38pm.

- Math -
**Reiny**, Friday, May 27, 2011 at 11:45pmlet the 3 consecutive numbers be

x-2, x and x+2

(x-2)(x)(x+2) - 23 = (x-2 + 2)^3 - 99

x(x^2 - 4) - 23 = x^3 - 99

x^3 - 4x = x^3 - 99 + 23

-4x = -76

x = 19

the three numbers are 17, 19, and 21

and their mean is 19

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