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a fost răspuns

3*3*3*3:3*3:3*0+2*2*2*(7*7-2*2*2*2*3)+576:48

Răspuns :

0+8×1+ 12= 8+12=20
.........
Mikelina

=3^4:3^2:3^0+2^3(49-16×3)+12=

3^(4-2):0+2^3(49-48)+12=

0+2^3×1+12=

0+8+12=

20