[tex]3 \times (5 + ( {81 - 80})^{2015} + {2}^{3 {}^{17} } \div {2}^{4 {}^{5} } ) \\ 3 \times (5 + {1}^{2015} + {2}^{51} \div {2}^{20} ) \\ 3 \times (5 + 1 + {2}^{31} ) \\ 3 \times (6 + {2}^{31} ) \\ 18 + 3 \times {2}^{31} [/tex]
cred că aşa se rezolvă...
