Răspunsuri

2014-08-15T19:15:15+03:00
2.5:0.25 =10 (0.5) ^2 =0.25 (2.5)^2 =6.25 10-0.25-6.25=10-6.5 =3.5
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2014-08-15T19:30:18+03:00