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(1,3₋0,18₋0,318)×[0,7₊0,93×(1,216₋0,16)] cum se face ??????? 

Răspuns :

(1,3₋0,18₋0,318)×[0,7₊0,93×(1,216₋0,16)]=0,802×(0,7₊0,93×1,056)=0,802×(0,7₊0,98208)=0,802x1,68208=1,3490281
  (1,3 - 0.18 - 0.318) x [1,63 x (1,056)] = (0.802) x [1.721] = 1.380