What is expand (2R)/((R^2+9)^2) ?

The solution to expand (2R)/((R^2+9)^2) is (2R)/(R^4+18R^2+81)

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expand (2R)/((R^2+9)^2)

expand

\frac{2 R}{( R ^{2} + 9 ) ^{2}}

\frac{2 R}{R ^{4} + 18 R ^{2} + 81}

Solution steps

\frac{2 R}{( R ^{2} + 9 ) ^{2}}

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

= \frac{2 R}{R ^{4} + 18 R ^{2} + 81}

\frac{3 x + 2}{x ( x ^{2} - 9 )}

ln (y^{2} + z^{2})

\frac{( y ^{6} - 4 ) ^{2}}{16 y ^{6}}

\frac{x ^{3} ( 3 x + 8 )}{12}

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

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