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January 30, 2015

January 30, 2015

Posted by **Anthony** on Friday, February 3, 2012 at 10:04am.

x2 - 9x + 81

- math -
**Reiny**, Friday, February 3, 2012 at 11:05amno

half of the middle term coefficient squared should equal the constant term.

It is not.

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