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

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

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

expand

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

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

Solution steps

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

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

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

x^{2} e^{2 x} (x + 3)

\frac{d}{d t} ((x) (cos (2 t) + sin (2 t) + \frac{1}{5} e^{t}))

(e^{2 t o + 2 a} + e^{- 2 t o - 2 a}) (e^{2 t} + e^{- 2 t})

e^{a t} u (t - 1)

\frac{d}{d z ( w )} ((w (z (w), x (w), y (w))) (x (w) + y (w)))

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