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December 19, 2014

December 19, 2014

Posted by **debby** on Tuesday, January 10, 2012 at 4:04pm.

- algebra -
**Reiny**, Tuesday, January 10, 2012 at 4:38pmlet your number be x

square that number --- x^2

subtract 1 ----- x^2 - 1

divide by one less than original number ---- (x^2 - 1)/(x-1)

= (x+1)(x-1)/(x-1)

= x+1

subtract original number

x+1 - x

= 1

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