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

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

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

expand

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

\frac{- e ^{- s} s - e ^{- s} + 1}{s ^{3} + 2 s ^{2}}

Solution steps

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

Expand

s^{2} (s + 2) : s^{3} + 2 s^{2}

= \frac{- e ^{- s} s - e ^{- s} + 1}{s ^{3} + 2 s ^{2}}

- \frac{( 30 - 12 + 18 )}{( - 3 )}

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

e^{(l n (x) - a)^{2}}

\frac{k ^{2} ( k + 1 ) ^{2}}{4} + (k + 1)

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

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