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

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

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

expand

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

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

Solution steps

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

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

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

Expand

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

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

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

\frac{x ( y + Δ y ) - y ^{3}}{Δ y}

\frac{( 2 + x ) ^{3}}{x}

e^{a (x + 1)} + 2 x + 1

\frac{13 x + 2}{( 3 x + 1 ) ^{2}}

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