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[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2

分类: 作业答案 • 2022-02-05 10:50:33
问题描述：

[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

答

[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

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