What is expand 2/((1+x^2+y^2)^2) ?

The solution to expand 2/((1+x^2+y^2)^2) is 2/(2x^2y^2+2x^2+x^4+2y^2+y^4+1)

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expand 2/((1+x^2+y^2)^2)

expand

\frac{2}{( 1 + x ^{2} + y ^{2} ) ^{2}}

\frac{2}{2 x ^{2} y ^{2} + 2 x ^{2} + x ^{4} + 2 y ^{2} + y ^{4} + 1}

Solution steps

\frac{2}{( 1 + x ^{2} + y ^{2} ) ^{2}}

(1 + x^{2} + y^{2})^{2} = 2 x^{2} y^{2} + 2 x^{2} + x^{4} + 2 y^{2} + y^{4} + 1

= \frac{2}{2 x ^{2} y ^{2} + 2 x ^{2} + x ^{4} + 2 y ^{2} + y ^{4} + 1}

2 (2 ln (2) + 1)

6 (14 ln (2) - 3)

\frac{4 ( 2 s + 10 ) ( 2 s - 80 )}{s ^{2} - 3200}

\frac{( X - 4 ) ^{2}}{2}

(x + Δ x)^{3} - 10 (x + Δ x)^{2} + 32 (x + Δ x) - 32

What is expand 2/((1+x^2+y^2)^2) ?
The solution to expand 2/((1+x^2+y^2)^2) is 2/(2x^2y^2+2x^2+x^4+2y^2+y^4+1)