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6+2x[(3+5²-2²x18:3²+3x11):2²]=

Răspuns :

6+2x[(3+5²-2²x18:3²+3x11):2²]=

= 6+2×[(3+25-4×18:9+33):4] =

= 6+2×[(28-4×2+33):4] =

= 6+2×[(28-8+33):4] =

= 6+2×(53:4) =

= 6+2×13,25 =

= 6+26,5 =

= 32,5