\[ \frac{5}{17} - 1 = \frac{5}{17} - \frac{17}{17} = \frac{5-17}{17} = \frac{-12}{17} \]
\[ 8^2 = 8 \cdot 8 = 64 \]
\[ \frac{64}{6.17} \cdot \frac{-12}{17} - 2^{-1} \cdot 2^2 \]
\[ 2^{-1} = \frac{1}{2} = 0.5 \]
\[ 2^2 = 4 \]
\[ 0.5 \cdot 4 = 2 \]
\[ \frac{64}{6.17} \approx 10.37 \]
\[ 10.37 \cdot \frac{-12}{17} \approx 10.37 \cdot (-0.706) \approx -7.32 \]
\[ -7.32 - 2 = -9.32 \]
Ответ: -9.32