What is expand (dx)/((1+x^2)^2) ?

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

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expand (dx)/((1+x^2)^2)

expand

\frac{d x}{( 1 + x ^{2} ) ^{2}}

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

Solution steps

\frac{d x}{( 1 + x ^{2} ) ^{2}}

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

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

\frac{4 s + 4}{s ( s ^{2} + 5 s + 6 )}

y (- 7, - 5, 18)

\frac{1}{s ( s ^{2} + k ^{2} )}

2 ∣ 3 (a + h) - 1 ∣

e^{j (wt - k x)}

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