If the maximum value of the expression \( y=\frac{x^{4}-x^{2}}{x^{6}+2 x^{3}-1} \) for \( x1 \),...

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If the maximum value of the expression \( y=\frac{x^{4}-x^{2}}{x^{6}+2 x^{3}-1} \) for \( x1 \), is \( \frac{p}{q} \) and it occurs at \( x=\frac{a+\sqrt{b}}{c} \) where \( p \) and \( q \) are in their lowest term and \( a, b, c \) are pairwise relatively prime positive numbers, find the value of \( (a+b+c+p+q) \).
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