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December 20, 2014

December 20, 2014

Posted by **TUHITUHI** on Wednesday, October 10, 2012 at 9:47am.

- math -
**Steve**, Wednesday, October 10, 2012 at 10:20amsince (a+b)^2 = a^2 + 2ab + b^2

10^2 = (a^2 + ab + b^2) + 16

a^2 + ab + b^2 = 100-16 = 84

similarly for the other

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