What is expand 1/(s^2(s^2+k^2)) ?

The solution to expand 1/(s^2(s^2+k^2)) is 1/(s^4+k^2s^2)

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expand 1/(s^2(s^2+k^2))

expand

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

\frac{1}{s ^{4} + k ^{2} s ^{2}}

Solution steps

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

Expand

s^{2} (s^{2} + k^{2}) : s^{4} + k^{2} s^{2}

= \frac{1}{s ^{4} + k ^{2} s ^{2}}

\frac{2.25}{( 11 s + 1 ) ( 7 s + 1 ) ( 13 s + 1 ) ( 17 s + 1 )}

(2 e^{x} - \frac{1}{8} e^{- x})^{2}

\frac{x ^{2} - 3 x + 16}{( x - 5 ) ( x ^{2} + 1 )}

\frac{( 8 x A + 16 x t + x A ^{2} ) ^{2}}{4 A ^{2}}

What is expand 1/(s^2(s^2+k^2)) ?
The solution to expand 1/(s^2(s^2+k^2)) is 1/(s^4+k^2s^2)