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17. Calculati:
a) (3/3 + 7)(7 - 3/3)-(1-15);
c) (275-1) +(6+2/5)(215-6):
b) (3-276)(256 +3)+(15+1);
d) (1 +413) - (2+52)(52-2).
va rog!!


Răspuns :

Răspuns:

b) -273 •259+16=

-70707+16= - 70691