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2014-07-26T11:22:25+03:00
X=12*6-68=72-68=4
p=(24-x)*(16+x)*(x+2)=20*20*6=2400
14 4 14
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2014-07-26T11:26:25+03:00
X=12*6-68=  72-68=4

p=(24-x)* (16+x) *(x+2)

p=(24-4)*(16+4)*(4+2)

p=20*20 *6

p=20² *6

p=400*6

p=2400
10 4 10