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Cel mai inteligent răspuns!
2014-10-05T01:10:36+03:00
2x[447-3x(109+240:6)]+2728:[302+19x(68-8x6)] =2x[447-3x(109+40)]+2728:[302+19x(68-48)] =2x(447-3x149)+2728:[(302+19x20)]=2x(447-447)+2728:(302+380)=2x0+2728:682=0+4=4
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2014-10-05T01:35:02+03:00
Calculezi prima data parantezele rotunde iar apoi cele drepte.