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VA ROG AJUTATI-MA!
OFER 50 DE PUNCTE!!!


VA ROG AJUTATIMA OFER 50 DE PUNCTE class=

Răspuns :

{3+0,5[2,3-0,2·(3,1-5,12:3,2)]}=
{3+0,5[2,3-0,2·(3,1-512/100:32/10)]}=
{3+0,5[2,3-0,2·(3,1-512/100·100/320)]}=
{3+0,5[2,3-0,2·(3,1-512/320)]}=
{3+0,5[2,3-0,2·(3,1-1,6)]}=
[3+0,5 (2,3-0,2·1,5)]=
[3+0,5(2,3-0,3)]=
(3+0,5×2)=
3+1=4