[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
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[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
![[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2](/uploads/image/z/17183651-59-1.jpg?t=%5B2%28x-y%29%5E5-8%28x-y%29%5E2%28x%2By%29%2B6y%28x-y%29%5E2%5D%C3%B72%28x-y%29%5E2)
[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
=(x-y)-4(x+y)+3y
=x-y-4x-4y+3y
=-3x-2y
=(x-y)-4(x+y)+3y
=x-y-4x-4y+3y
=-3x-2y
[(-x-y)(-x+y)-(x+y)^2-x(y-y^2)}÷1/2y
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x^8-x^7y+x^6y^2-x^5y^3+x^4y^4-x^3y^5+x^2y^-xy^7+y^8
[x(x-y)-y(x-y)+(x+y)(x-y)]÷2x其中x=2012 y=2013
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
1.[(x-y)^2-2(y -x)]÷(x-y)
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