What is expand (e^{-s}-e^{-2s}+s^2)/(s^2(s^2-2s+1)) ?

The solution to expand (e^{-s}-e^{-2s}+s^2)/(s^2(s^2-2s+1)) is (e^{-s}-e^{-2s}+s^2)/(s^4-2s^3+s^2)

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expand (e^{-s}-e^{-2s}+s^2)/(s^2(s^2-2s+1))

expand

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

\frac{e ^{- s} - e ^{- 2 s} + s ^{2}}{s ^{4} - 2 s ^{3} + s ^{2}}

Solution steps

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

Expand

s^{2} (s^{2} - 2 s + 1) : s^{4} - 2 s^{3} + s^{2}

= \frac{e ^{- s} - e ^{- 2 s} + s ^{2}}{s ^{4} - 2 s ^{3} + s ^{2}}

\frac{x ^{2}}{( 2 x + 1 ) ( x + 2 ) ^{2}}

\frac{( x - 1 ) ( x - 8 )}{3 x ^{5} - 5 x ^{3} - 7 x - 3}

(- 6, 5) y (- 3, - 3)

(250 (s + 7) (s + 14)) \cdot (s (s^{2} + 14 s + 50))

\frac{x}{( x + 2018 ) ^{2}}

What is expand (e^{-s}-e^{-2s}+s^2)/(s^2(s^2-2s+1)) ?
The solution to expand (e^{-s}-e^{-2s}+s^2)/(s^2(s^2-2s+1)) is (e^{-s}-e^{-2s}+s^2)/(s^4-2s^3+s^2)