What is expand-(2s)/((s^2-1)^2) ?

The solution to expand-(2s)/((s^2-1)^2) is -(2s)/(s^4-2s^2+1)

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expand-(2s)/((s^2-1)^2)

expand

- \frac{2 s}{( s ^{2} - 1 ) ^{2}}

- \frac{2 s}{s ^{4} - 2 s ^{2} + 1}

Solution steps

- \frac{2 s}{( s ^{2} - 1 ) ^{2}}

(s^{2} - 1)^{2} = s^{4} - 2 s^{2} + 1

= - \frac{2 s}{s ^{4} - 2 s ^{2} + 1}

x \to 1 lim (ln (ln (x)))

(3 - 5 x e x) (3 x + 2)

\frac{8 x}{3 - cot ( x )}

\frac{3 s + 5}{( s - 5 ) ( s + 2 )}

\frac{\partial}{\partial x} (2 x^{3} y + cos (x^{4}))

What is expand-(2s)/((s^2-1)^2) ?
The solution to expand-(2s)/((s^2-1)^2) is -(2s)/(s^4-2s^2+1)