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8[20-9(9-5)^2]
 Sep 12, 2013
 #1
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8[20-9(9-5)^2]
=8[20-9(4)^2]
=8[20-9(16)]
=8[20-144]
=8[-124]
=-992
 Sep 12, 2013
 #2
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Thank you Maggie
 Sep 12, 2013
 #3
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Guest Sep 13, 2013
 #4
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WELCOME~
 Sep 13, 2013

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