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Calculează
{[1+(2+3×5)×4]+[6+(7×8-9)]}×(10-10)=


Răspuns :

= { [ 1+(2+15)x4]+[6+(56-9)]}x0=

= 0
{[1+(2+15)*4]+[6+(56-9)]}*0
[(1+17*4)+(6+47)]*0
[(1+68)+53]*0
(69+53)*0
122*0
0