What is expand (2xy)/((x^2+y^2)^2) ?

The solution to expand (2xy)/((x^2+y^2)^2) is (2xy)/(x^4+2x^2y^2+y^4)

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expand (2xy)/((x^2+y^2)^2)

expand

\frac{2 x y}{( x ^{2} + y ^{2} ) ^{2}}

\frac{2 x y}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

Solution steps

\frac{2 x y}{( x ^{2} + y ^{2} ) ^{2}}

(x^{2} + y^{2})^{2} = x^{4} + 2 x^{2} y^{2} + y^{4}

= \frac{2 x y}{x ^{4} + 2 x ^{2} y ^{2} + y ^{4}}

(y + \frac{x + y}{x}) ln (x y)

\frac{7 u ( 4 u - 1 ) ( 3 u - 1 )}{4 u + 5}

- (\frac{x + 1}{( 9 x - 2 ) ( x - 1 )})

(y e^{yz} + \frac{1}{z}) (2)

e^{(2 t)} (sin (2 t) - 1)

What is expand (2xy)/((x^2+y^2)^2) ?
The solution to expand (2xy)/((x^2+y^2)^2) is (2xy)/(x^4+2x^2y^2+y^4)