What is expand-(s(-2s^2-5))/((s+1)(s-1)(s^2+1)) ?

The solution to expand-(s(-2s^2-5))/((s+1)(s-1)(s^2+1)) is -(-2s^3-5s)/(s^4-1)

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expand-(s(-2s^2-5))/((s+1)(s-1)(s^2+1))

expand

- \frac{s ( - 2 s ^{2} - 5 )}{( s + 1 ) ( s - 1 ) ( s ^{2} + 1 )}

- \frac{- 2 s ^{3} - 5 s}{s ^{4} - 1}

Solution steps

- \frac{s ( - 2 s ^{2} - 5 )}{( s + 1 ) ( s - 1 ) ( s ^{2} + 1 )}

Expand

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

= - \frac{s ( - 2 s ^{2} - 5 )}{s ^{4} - 1}

Expand

s (- 2 s^{2} - 5) : - 2 s^{3} - 5 s

= - \frac{- 2 s ^{3} - 5 s}{s ^{4} - 1}

(x + \frac{1}{5}) (x - \frac{1}{5})

(x + 2)^{3}

(3 + i)^{4}

(a - \frac{1}{b}) (a + \frac{1}{b})

(1 - \frac{1}{b}) (m r^{2} - I)

What is expand-(s(-2s^2-5))/((s+1)(s-1)(s^2+1)) ?
The solution to expand-(s(-2s^2-5))/((s+1)(s-1)(s^2+1)) is -(-2s^3-5s)/(s^4-1)