What is expand-4/(s^2(s^2-6s+9)) ?

The solution to expand-4/(s^2(s^2-6s+9)) is -4/(s^4-6s^3+9s^2)

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expand-4/(s^2(s^2-6s+9))

expand

- \frac{4}{s ^{2} ( s ^{2} - 6 s + 9 )}

- \frac{4}{s ^{4} - 6 s ^{3} + 9 s ^{2}}

Solution steps

- \frac{4}{s ^{2} ( s ^{2} - 6 s + 9 )}

Expand

s^{2} (s^{2} - 6 s + 9) : s^{4} - 6 s^{3} + 9 s^{2}

= - \frac{4}{s ^{4} - 6 s ^{3} + 9 s ^{2}}

1 + 1 + 4 (π^{2} + π)

\frac{x ( 6 x + 12 ) ( x - 2 ) ^{2}}{x - 3}

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

\frac{8}{6}

3 x^{2} \cdot (1 - 2 ln (x))

What is expand-4/(s^2(s^2-6s+9)) ?
The solution to expand-4/(s^2(s^2-6s+9)) is -4/(s^4-6s^3+9s^2)