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July 28, 2014

July 28, 2014

Posted by **Sam** on Thursday, September 26, 2013 at 10:39pm.

Y^3+y^2-4y-4

- Algebra -
**Reiny**, Thursday, September 26, 2013 at 11:40pmuse grouping

= y^2(y+1)- 4(y+1)

= (y+1)(y^2 - 4) ---- now a difference of squares

= (y+1)(y+2)(y-2)

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