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Buna, ma ajuta-ti va rog... Efectuati [(3^3)^15:3^6^2-3^3^2]x513^23

Răspuns :

[tex]\it = (3^{45}:3^{36}-3^9)\cdot513^{23}=(3^9-3^9)\cdot513^{23}=0\cdot513^{23}=0[/tex]