Find the range of values of k, such that f(x)=k x^2+2(k+1) x+(9 k+4)/x^2-8 x+17 is always negativ...

Find the range of values of k, such that f(x)=k x^2+2(k+1) x+(9 k+4)/x^2-8 x+17 is always negative.
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