What is expand (7s)/((s^2+k^2)(s-1)) ?

The solution to expand (7s)/((s^2+k^2)(s-1)) is (7s)/(s^3-s^2+k^2s-k^2)

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expand (7s)/((s^2+k^2)(s-1))

expand

\frac{7 s}{( s ^{2} + k ^{2} ) ( s - 1 )}

\frac{7 s}{s ^{3} - s ^{2} + k ^{2} s - k ^{2}}

Solution steps

\frac{7 s}{( s ^{2} + k ^{2} ) ( s - 1 )}

Expand

(s^{2} + k^{2}) (s - 1) : s^{3} - s^{2} + k^{2} s - k^{2}

= \frac{7 s}{s ^{3} - s ^{2} + k ^{2} s - k ^{2}}

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What is expand (7s)/((s^2+k^2)(s-1)) ?
The solution to expand (7s)/((s^2+k^2)(s-1)) is (7s)/(s^3-s^2+k^2s-k^2)