Evaluate
\frac{1}{\left(s-1\right)\left(s+4\right)s^{2}}
Expand
\frac{1}{s^{2}\left(s^{2}+3s-4\right)}
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\frac{1}{s^{4}+3s^{3}-4s^{2}}
Use the distributive property to multiply s^{2} by s^{2}+3s-4.
\frac{1}{s^{4}+3s^{3}-4s^{2}}
Use the distributive property to multiply s^{2} by s^{2}+3s-4.
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