Posted by **mina** on Thursday, March 18, 2010 at 9:49am.

Factor y2 + 10z - 10y - yz.

- Math, not "9th grade" -
**Writeacher**, Thursday, March 18, 2010 at 9:58am
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- 9th grade -
**monica**, Thursday, March 18, 2010 at 3:04pm
re-write as y^2-10y-yz+10z and factor 2 and 2

y(y-10)-z(y-10)

(y-z)(y-10)

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