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October 21, 2014

October 21, 2014

Posted by **cristina** on Sunday, August 21, 2005 at 10:36am.

1)130

2) 11

3) x,(x+20)

http://www.wtamu.edu/academic/anns/mps/math/mathlab/beg_algebra/beg_alg_tut33_geom_ans.htm

72+27a+a2

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