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2^6-2^3=2^3(2^3-1)=2^3*7=8*7=56
(3²*2 do potęgi -1)² - 2 do potęgi -2
3^4*2^-2-2^-2=2^-2(3^4-1)=2^-2*80=80/4=20
56/20=14/5=2.8
Chyba o to chodzi;p