What is expand (9+27s+3s^3)/((9+s^2)^2) ?

The solution to expand (9+27s+3s^3)/((9+s^2)^2) is (9+27s+3s^3)/(81+18s^2+s^4)

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expand (9+27s+3s^3)/((9+s^2)^2)

expand

\frac{9 + 27 s + 3 s ^{3}}{( 9 + s ^{2} ) ^{2}}

\frac{9 + 27 s + 3 s ^{3}}{81 + 18 s ^{2} + s ^{4}}

Solution steps

\frac{9 + 27 s + 3 s ^{3}}{( 9 + s ^{2} ) ^{2}}

(9 + s^{2})^{2} = 81 + 18 s^{2} + s^{4}

= \frac{9 + 27 s + 3 s ^{3}}{81 + 18 s ^{2} + s ^{4}}

\frac{( 0.37 + 2 x ) ^{2}}{( 0.3 - x ) \cdot ( 0.38 - x )}

2 π (2 + ln (1 + 2))

\frac{31.622}{( s + 0.5 ) ( s + 1 ) ^{2}}

\frac{δ}{δ x} (cos (x) + cos (y))

\frac{( x + 3 i ) ^{5} \cdot ( 3 - 4 i )}{16}

What is expand (9+27s+3s^3)/((9+s^2)^2) ?
The solution to expand (9+27s+3s^3)/((9+s^2)^2) is (9+27s+3s^3)/(81+18s^2+s^4)