Evaluate
\left(\frac{\left(x-y\right)\left(2x^{2}+xy+2y^{2}+2y\right)}{x^{2}+y^{2}+2y}\right)^{2}
Expand
\frac{4x^{6}+5x^{2}y^{4}+8x^{2}y^{3}-4xy^{5}-12xy^{4}-8xy^{3}+4y^{6}+8y^{5}+4y^{4}+5y^{2}x^{4}-12y^{2}x^{3}-4yx^{5}+8yx^{4}-10\left(xy\right)^{3}+4\left(xy\right)^{2}}{\left(x^{2}+y^{2}+2y\right)^{2}}
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Examples
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