What is expand-(16x)/((x^2+4)^2) ?

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

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expand-(16x)/((x^2+4)^2)

expand

- \frac{16 x}{( x ^{2} + 4 ) ^{2}}

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

Solution steps

- \frac{16 x}{( x ^{2} + 4 ) ^{2}}

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

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

(x + 1) x^{3} - 3 x^{2} + 6 x + 11

\frac{( x + i y ) ^{5}}{( x ^{2} + y ^{2} ) ^{2}}

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

\frac{2 s + 5}{( s + 3 ) ^{2} + 25}

(3 x + \frac{1}{4}) (3 x - \frac{1}{4})

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