计算,[(x-2y)(x-6y)+6y(x-2y)]÷2x
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计算,[(x-2y)(x-6y)+6y(x-2y)]÷2x
计算,[(x-2y)(x-6y)+6y(x-2y)]÷2x
计算,[(x-2y)(x-6y)+6y(x-2y)]÷2x
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【(2x-y)(2x+y)+y(y-6x)】÷2x