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April 18, 2014

April 18, 2014

Posted by **kik** on Tuesday, September 28, 2010 at 6:40pm.

- trig -
**Reiny**, Tuesday, September 28, 2010 at 7:02pmtrig?

25p^2 - 81 = 0

(5p-9)(5p+9) = 0

take it from there.

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