What is expand-(48x)/((x^2+12)^2) ?

The solution to expand-(48x)/((x^2+12)^2) is -(48x)/(x^4+24x^2+144)

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expand-(48x)/((x^2+12)^2)

expand

- \frac{48 x}{( x ^{2} + 12 ) ^{2}}

- \frac{48 x}{x ^{4} + 24 x ^{2} + 144}

Solution steps

- \frac{48 x}{( x ^{2} + 12 ) ^{2}}

(x^{2} + 12)^{2} = x^{4} + 24 x^{2} + 144

= - \frac{48 x}{x ^{4} + 24 x ^{2} + 144}

3 (1 - cos (θ))

(t - sin (t))^{2}

\frac{10 ( s + 2 )}{s ( s + 1 ) ^{2}}

e^{y} (e^{- x} + 1)^{3} \frac{d y}{d x}

A (1, - 2) Y B (- 3, - 2)

What is expand-(48x)/((x^2+12)^2) ?
The solution to expand-(48x)/((x^2+12)^2) is -(48x)/(x^4+24x^2+144)