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7^2x(27^3:9^4+1) va rog foarte frumos dau coroana

Răspuns :

7^2•[(3^3)^3:(3^2)^4+1]=
7^2•(3^9:3^8+1)=
7^2•(3+1)=
7^2•2^2=
(7•2)^2=
14^2=
196
7^2×(27^3:9^4+1)
=7^2×(19683:6561+1)
=7^2×(3+1)
=7^2×4
=49×4
=196