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January 31, 2015

January 31, 2015

Posted by **Heather** on Wednesday, April 14, 2010 at 11:12pm.

- Math -
**Reiny**, Wednesday, April 14, 2010 at 11:17pm(3x^2+x)+ (3x+1)

= x(3x + 1) + 1(3x + 1)

= (3x + 1)(x + 1)

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