Find the range of values of \( k \), such that \( f(x)=\frac{k x^{2...

Find the range of values of \( k \), such that \( f(x)=\frac{k x^{2}+2(k+1) x+(9 k+4)}{x^{2}-8 x+17} \) is always negative.
\( \mathrm{PB} \)