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

The solution to expand (xy(x^2-y^2))/(x^2+y^2) is (x^3y-xy^3)/(x^2+y^2)

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

expand

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

\frac{x ^{3} y - x y ^{3}}{x ^{2} + y ^{2}}

Solution steps

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

Expand

x y (x^{2} - y^{2}) : x^{3} y - x y^{3}

= \frac{x ^{3} y - x y ^{3}}{x ^{2} + y ^{2}}

(1 + 2)^{6}

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

(t - b) e^{a t}

(x - 1)^{2} (x^{2} - 2 x + 1)

(tan (a) + cot (a)) sin (a)

What is expand (xy(x^2-y^2))/(x^2+y^2) ?
The solution to expand (xy(x^2-y^2))/(x^2+y^2) is (x^3y-xy^3)/(x^2+y^2)