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7³-12:3²+0
5²•2-7²+3°


Răspuns :

=7³-12:9+0
=343-12:9+0
=343-1,(3)+0
=342-1,(3)


b)5²•2-7²+3°
=25•2-49+1
=50-49+1
=2
343-12:9=341(6) 25*2-49+1=2 acum e bine!!