What is expand s/((s^2+a^2)^2) ?

The solution to expand s/((s^2+a^2)^2) is s/(s^4+2a^2s^2+a^4)

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expand s/((s^2+a^2)^2)

expand

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

\frac{s}{s ^{4} + 2 a ^{2} s ^{2} + a ^{4}}

Solution steps

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

(s^{2} + a^{2})^{2} = s^{4} + 2 a^{2} s^{2} + a^{4}

= \frac{s}{s ^{4} + 2 a ^{2} s ^{2} + a ^{4}}

(\frac{2}{x} + y^{2})^{12}

\frac{8 x - 1}{( x - 2 ) ( x + 3 )}

(4 + \frac{1}{x}) (2 - \frac{3}{x})

\frac{( 1 + j ) ^{6}}{( 1 - j ) ^{2} ( 2 + j ) ^{4}}

(3 x - 2)^{2}

What is expand s/((s^2+a^2)^2) ?
The solution to expand s/((s^2+a^2)^2) is s/(s^4+2a^2s^2+a^4)