若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
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若(x-4y)(x+3y)=0且xy>0则分式x+3y/2x-y的值为若(x-4y)(x+3y)=0且xy>0则分式x+3y/2x-y的值为若(x-4y)(x+3y)=0且xy>0则分式x+3y/2x
若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
1
x=4y代入
嗯,答案就是1。。。我也得这数
若(x-4y)(x+3y)=0 且xy>0 则分式x+3y/2x-y的值为
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