\[\left( \sqrt[7]{8} \right)^{2}\ :4^{\frac{3}{7}} + \left( 3^{\frac{1}{5}} \cdot 2^{\frac{1}{2}} \right)^{3} \cdot \frac{\sqrt[5]{9}}{\sqrt{2}} =\]
\[= 2^{\frac{6}{7}}\ \ :2^{\frac{6}{7}} + 3^{\frac{3}{5}} \cdot 3^{\frac{2}{5}}\ :2^{\frac{1}{2}} =\]
\[= 1 + 3 \cdot 2 = 1 + 6 = 7\ \]