\( \frac{2(-6) + 3}{3(-6) - 4(3)} = \frac{-12 + 3}{-18 - 12} = \frac{-9}{-30} = \frac{3}{10} = 0.3 \)
\( \frac{(0.6)^2 - 3(0.6)}{8(0.6) - 3} = \frac{0.36 - 1.8}{4.8 - 3} = \frac{-1.44}{1.8} = -0.8 \)
Ответ: 1) \( 0.3 \); 2) \( -0.8 \).