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April 16, 2014

April 16, 2014

Posted by **David** on Thursday, December 13, 2012 at 12:30pm.

- I don't know the quadreatic formula for this -
**Reiny**, Thursday, December 13, 2012 at 12:50pmtypo in the first ...

in 2nd:

x^2 + 2x - 82 = 0

x = (-2 ± √(4 -4(1)(-82))/2

= (-2 ± √332)/2

= (-2 ± 2√83)/2

= -1 ± √83

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