因式分解y(x-y)+x(y-x)
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y(x-y)+x(y-x)
=y(x-y)-x(x-y)
=(x-y)(y-x)
=-(x-y)(x-y)
=-(x-y)²
=y(x-y)-x(x-y)
=(x-y)(y-x)
=-(x-y)(x-y)
=-(x-y)²
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展开全部
y(x-y)+x(y-x)
=y(x-y)-x(x-y)
=(x-y)(y-x)
=-(x-y)(x-y)
=-(x-y)²
=y(x-y)-x(x-y)
=(x-y)(y-x)
=-(x-y)(x-y)
=-(x-y)²
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你对这个回答的评价是?
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y(x-y)+x(y-x) =-y(y-x)+x(y-x)=-(y-x)(y-x)=-(y-x)²
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