|2x-y|+9x-2y-4)²,则(x-y)=( )
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|2x-y|+9x-2y-4)²,则(x-y)=()|2x-y|+9x-2y-4)²,则(x-y)=()|2x-y|+9x-2y-4)²,则(x-y)=()y=-8/3,
|2x-y|+9x-2y-4)²,则(x-y)=( )
|2x-y|+9x-2y-4)²,则(x-y)=( )
|2x-y|+9x-2y-4)²,则(x-y)=( )
y=-8/3,x=-4/3,x-y=-8/3
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|2x-y|+9x-2y-4)²,则(x-y)=( )
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