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A) 2,5+500·[ 0,3+1,2·(0,135+14,2-0,2)]

Răspuns :

2,5+500•(0,3+1,2•14,135)= 2,5+500•(0,3+16,962)=
2,5+500•17,262=
2,5+8631=
8633,5