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February 28, 2015

February 28, 2015

Posted by **Bryanne** on Monday, November 8, 2010 at 3:09pm.

- math 1 -
**Reiny**, Monday, November 8, 2010 at 3:53pmwrite it this way:

c^2 - 6cd + 9d^2 - 4

= (c - 3d)^2 - 4

now I see a difference of squares

= (c-3d + 2)(c-3d-2)

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