Răspuns:
154×27-[115×9-(43×14+63÷3)+126×13]=
154×27-[115×9-(602+21)+126×13]
154×27-(115×9-623+126×13)
154×27-(1035-623+1638)
154×27-(412+1638)
154×27-2050
4158-2050
2108
Explicatie:
Dupa ce rezolvi parantezele rotunde alea patrate devin rotunde si mai intai rezolvi parantezele dupa ce nu e in ele.
Succes!!!
