What is expand 1/((s+1)^2(s+3)) ?

The solution to expand 1/((s+1)^2(s+3)) is 1/(s^3+5s^2+7s+3)

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expand 1/((s+1)^2(s+3))

expand

\frac{1}{( s + 1 ) ^{2} ( s + 3 )}

\frac{1}{s ^{3} + 5 s ^{2} + 7 s + 3}

Solution steps

\frac{1}{( s + 1 ) ^{2} ( s + 3 )}

(s + 1)^{2} = s^{2} + 2 s + 1

= \frac{1}{( s ^{2} + 2 s + 1 ) ( s + 3 )}

Expand

(s^{2} + 2 s + 1) (s + 3) : s^{3} + 5 s^{2} + 7 s + 3

= \frac{1}{s ^{3} + 5 s ^{2} + 7 s + 3}

\frac{\partial}{\partial y} (5 e^{y}) + e^{y} (3 x + 5 y)

- \frac{2 ( 1 - i ) ^{7}}{( 1 + i ) ^{7}}

(x - 3) (x - 2 - \frac{4}{x - 3})

\frac{W L ( 2 X - L ) ^{2}}{8}

A (- 2, 1) B (3, 4) C (5, - 2)

What is expand 1/((s+1)^2(s+3)) ?
The solution to expand 1/((s+1)^2(s+3)) is 1/(s^3+5s^2+7s+3)