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(x-2y)^2-(x+2y)(2y-x)=??
2个回答
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(x-2y)^2-(x+2y)(2y-x)
=(x-2y)^2+(x+2y)(x-2y)
=(x-2y)(x-2y+x+2y)
=(x-2y)×2x
=2x^2-4xy
如果帮到你,请记得采纳,O(∩_∩)O谢谢
=(x-2y)^2+(x+2y)(x-2y)
=(x-2y)(x-2y+x+2y)
=(x-2y)×2x
=2x^2-4xy
如果帮到你,请记得采纳,O(∩_∩)O谢谢
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