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December 21, 2014

December 21, 2014

Posted by **Amanda** on Sunday, September 18, 2011 at 4:38pm.

- Algebra -
**Reiny**, Sunday, September 18, 2011 at 5:06pm√((x-7)^2 + 12^2) = 13

square both sides and expand

x^2 - 14x + 49 + 144 = 169

x^2 - 14x +24 = 0

(x-12)(x-2) = 0

x = 12 or x = 2

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