What is expand (dx)/((4+x^2)^2) ?

The solution to expand (dx)/((4+x^2)^2) is (dx)/(16+8x^2+x^4)

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expand (dx)/((4+x^2)^2)

expand

\frac{d x}{( 4 + x ^{2} ) ^{2}}

\frac{d x}{16 + 8 x ^{2} + x ^{4}}

Solution steps

\frac{d x}{( 4 + x ^{2} ) ^{2}}

(4 + x^{2})^{2} = 16 + 8 x^{2} + x^{4}

= \frac{d x}{16 + 8 x ^{2} + x ^{4}}

(1 + 3 cos (x))^{2}

\frac{3 - x}{( x - 2 ) ^{4}}

\frac{x}{( x ^{2} + w ^{2} ) ( x ^{2} + 4 )}

- \frac{x ^{2} ( 2 x - 9 )}{6}

(cos (x) + cos (y))^{2}

What is expand (dx)/((4+x^2)^2) ?
The solution to expand (dx)/((4+x^2)^2) is (dx)/(16+8x^2+x^4)