What is expand (4x)/((x^2-1)^2) ?

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

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expand (4x)/((x^2-1)^2)

expand

\frac{4 x}{( x ^{2} - 1 ) ^{2}}

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

Solution steps

\frac{4 x}{( x ^{2} - 1 ) ^{2}}

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

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

- \frac{( x - y ) ^{2}}{x ^{2} + y ^{2}}

\frac{\partial}{\partial t} ((u) ((t u - v)^{2} ln (w - uv)))

\frac{0.5 - \frac{1}{z}}{z ^{3} - 1.3 z ^{2} + 0.4 z} \cdot \frac{z}{z}

\frac{7 s ^{2} + 63 s + 134}{( s + 3 ) ( s + 4 ) ( s + 5 )}

\frac{a ( x + 1 ) ^{2} + b ( x ) ( x + 1 ) + c x}{x ( x + 1 ) ^{2}}

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