What is expand (72x^2-24)/((x^2+1)^3) ?

The solution to expand (72x^2-24)/((x^2+1)^3) is (72x^2-24)/(x^6+3x^4+3x^2+1)

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expand (72x^2-24)/((x^2+1)^3)

expand

\frac{72 x ^{2} - 24}{( x ^{2} + 1 ) ^{3}}

\frac{72 x ^{2} - 24}{x ^{6} + 3 x ^{4} + 3 x ^{2} + 1}

Solution steps

\frac{72 x ^{2} - 24}{( x ^{2} + 1 ) ^{3}}

(x^{2} + 1)^{3} = x^{6} + 3 x^{4} + 3 x^{2} + 1

= \frac{72 x ^{2} - 24}{x ^{6} + 3 x ^{4} + 3 x ^{2} + 1}

\frac{V}{s ( L \cdot s + R )}

(2 x^{2} + 1) e^{x}

\frac{z ^{2}}{( z - 2 ) ^{2} ( z + 4 )}

x (3^{x} - 3 x = 69)

(y^{'''} (x) + x) (y - x)

What is expand (72x^2-24)/((x^2+1)^3) ?
The solution to expand (72x^2-24)/((x^2+1)^3) is (72x^2-24)/(x^6+3x^4+3x^2+1)