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6+2x[3x5 la puterea a 2 a -2 la puterea a2 a x18:3la puterea a 2 a +3x11):2 la puterea a 2 a ]

Răspuns :

unde incepe paranteza rotunda???
6+2[(3*5)^2-2^2*18:3^2+3*11):2^2]=6+2(225-4*2+33):4=6+2*258:4=6+150:4=6+125=131