Salut,
Avem așa:
[tex]3^{51}=3^{3\cdot 17}=(3^3)^{17}=27^{17}.\\\\2^{85}=2^{5\cdot 17}=(2^5)^{17}=32^{17}.\\\\27<32,\ deci\ 27^{17}<32^{17},\ adic\breve{a}\ 3^{51}<2^{85},\ sau\ 3^{51}-2^{85}<0.\\\\|3^{51}-2^{85}|=-(3^{51}-2^{85})=2^{85}-3^{51}.[/tex]
Ai înțeles rezolvarea ?
Green eyes.