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January 31, 2015

January 31, 2015

Posted by **Kim** on Friday, September 28, 2012 at 8:20pm.

- Maths -
**Bobby**, Thursday, May 1, 2014 at 9:18amx^2+x-4

(x-2)(x+2)

x^2-2x-15

(x+3)(-5)

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