[(x-y)^2]*[x/(x^2-y^2)]-[(2xy^2)/(x^2+xy)]
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[(x-y)^2]*[x/(x^2-y^2)]-[(2xy^2)/(x^2+xy)]
![[(x-y)^2]*[x/(x^2-y^2)]-[(2xy^2)/(x^2+xy)]](/uploads/image/z/6247936-64-6.jpg?t=%5B%28x-y%29%5E2%5D%2A%5Bx%2F%28x%5E2-y%5E2%29%5D-%5B%282xy%5E2%29%2F%28x%5E2%2Bxy%29%5D)
[(x-y)^2]*[x/(x^2-y^2)]-[(2xy^2)/(x^2+xy)]
=[(x-y)^2]*[x/[(x-y)(x+y)]]-[(2y^2)/(x+y)]
=( x^2-xy-2y^2)/(x+y)
=x-2y
=[(x-y)^2]*[x/[(x-y)(x+y)]]-[(2y^2)/(x+y)]
=( x^2-xy-2y^2)/(x+y)
=x-2y
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