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

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

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

expand

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

\frac{1 - e ^{- s} + s ^{2}}{s ^{4} + s ^{2}}

Solution steps

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

Expand

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

= \frac{1 - e ^{- s} + s ^{2}}{s ^{4} + s ^{2}}

(16 x^{2} + 25) (x - 1 - x + 1 - 1)

\frac{a ^{4} - 2 a ^{2} b + b ^{2} + c ^{2}}{c ( b - a ) ^{2}}

3 x l e f t (- 2 x^{2} + 6 x + 4)

6 (\frac{x}{2} + \frac{y}{2} - \frac{z}{3} = 3,)

\frac{( x + y ) ( x ^{2} - x y + y ^{2} )}{x + 2 y}

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