结果用幂的形式表示:1.(x-y)^2(y-x)= 2.(x-y)^2(y-)^2= 3.(x-y)^2(y-x)^3= 4.(x-y)^3(y-x)=

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结果用幂的形式表示:1.(x-y)^2(y-x)= 2.(x-y)^2(y-)^2= 3.(x-y)^2(y-x)^3= 4.(x-y)^3(y-x)=
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结果用幂的形式表示:1.(x-y)^2(y-x)= 2.(x-y)^2(y-)^2= 3.(x-y)^2(y-x)^3= 4.(x-y)^3(y-x)=
结果用幂的形式表示:1.(x-y)^2(y-x)= 2.(x-y)^2(y-)^2= 3.(x-y)^2(y-x)^3= 4.(x-y)^3(y-x)=

结果用幂的形式表示:1.(x-y)^2(y-x)= 2.(x-y)^2(y-)^2= 3.(x-y)^2(y-x)^3= 4.(x-y)^3(y-x)=
1.(x-y)^2(y-x) = (y-x)^2(y-x) = (y-x)^(2+1) = (y-x)^3
2.(x-y)^2(y-x)^2 = (y-x)^2(y-x)^2 = (y-x)^(2+2) = (y-x)^4
3.(x-y)^2(y-x)^3 = (y-x)^2(y-x)^3 = (y-x)^(2+3) = (y-x)^5
4.(x-y)^3(y-x) = -(y-x)^3(y-x) = -(y-x)^(3+1) = -(y-x)^4