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December 19, 2014

December 19, 2014

Posted by **britt** on Tuesday, April 5, 2011 at 2:45pm.

- algebra -
**Alex**, Tuesday, April 5, 2011 at 3:19pmx^2-4x-5=0

(x+1) (x-5)=0

x+1= 0 x-5= 0

-1 -1 +5 +5

x=-1 x=5

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