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efectuati
3^51:3^48+23^1x3^3+1220^0=
12^55:6^55:2^50-7^1x5^0+13^2=
VA ROG MULT ARATATI-MI UN MOD DE A CALCULA MAI REPEDE!!!!!!!!!


Răspuns :

3^51:3^48+23^1x3^3+1220^0=
=3^3+23x3^3+1=
=3^3 ×(1+23)+1=
=27 ×24+1=
=648+1=
=649
 
12^55:6^55:2^50-7^1x5^0+13^2=
=
(2^2)^55×3^55×:(2^55×3
^55):2^50-7x1+13^2=
=2^110×3^55×:2^55×3^55:2^50-7x1+13^2=
=2^5 -7+169=
=32+162=194