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calculati:
a) 39-51:[1+2×(24×25-599)]
b)15+[34×(598-568)-(671+349)]
c)25×2[208-(707-568)]-28×61-6
URGENT CA NU LE INTELEG!!!


Răspuns :

a) 39-51:[1+2×(25-599)]=
-12:1+2×(-574)=
-12-114=-126

b)15+[34×(598-568)-(671+349)]=
18+[34×30-322]=
18+[1020-322]=
18+698=716

C)25×2[308-(707-568)]-28×61-6=
50×308-139-1708-6=
15400-139-1702=
15261-1702=
13420

cu plăcere