[tex]\frac{2}{7}\left(-\frac{1}{3}-\frac{7}{15}+\frac{1}{5}\right)\left(\frac{4}{5}\right)^{\frac{-1+\left(-\frac{1}{2}+\frac{1}{4}\right):5}{12}} = \\[/tex]
[tex]=\frac{2}{7}\left(\frac{4}{5}\right)^{\frac{-1+5\left(-\frac{1}{2}+\frac{1}{4}\right):}{12}}\left(-\frac{1}{3}-\frac{7}{15}+\frac{1}{5}\right) =\\[/tex]
[tex]=\frac{2}{7}\left(\frac{4}{5}\right)^{\frac{-1+\left(-\frac{1}{2}+\frac{1}{4}\right):5}{12}}\left(-\frac{1}{3}\right)+\frac{2}{7}\left(\frac{4}{5}\right)^{\frac{-1+\left(-\frac{1}{2}+\frac{1}{4}\right):5}{12}}\left(-\frac{7}{15}\right)+\frac{2}{7}\left(\frac{4}{5}\right)^{\frac{-1+\left(-\frac{1}{2}+\frac{1}{4}\right):5}{12}}\frac{1}{5}=[/tex]
[tex]=-\frac{2}{7}\cdot \frac{1}{3}\left(\frac{4}{5}\right)^{\frac{-1+5\left(-\frac{1}{2}+\frac{1}{4}\right):}{12}}-\frac{2}{7}\cdot \frac{7}{15}\left(\frac{4}{5}\right)^{\frac{-1+5\left(-\frac{1}{2}+\frac{1}{4}\right):}{12}}+\frac{2}{7}\cdot \frac{1}{5}\left(\frac{4}{5}\right)^{\frac{-1+5\left(-\frac{1}{2}+\frac{1}{4}\right):}{12}}[/tex]
