化简求值:[(xy-2)²+4xy-4]÷(xy),其中x=10,y=1/25
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![化简求值:[(xy-2)²+4xy-4]÷(xy),其中x=10,y=1/25](/uploads/image/z/4047399-63-9.jpg?t=%E5%8C%96%E7%AE%80%E6%B1%82%E5%80%BC%EF%BC%9A%5B%EF%BC%88xy-2%29%26%23178%3B%2B4xy-4%5D%C3%B7%28xy%29%2C%E5%85%B6%E4%B8%ADx%3D10%2Cy%3D1%2F25)
化简求值:[(xy-2)²+4xy-4]÷(xy),其中x=10,y=1/25
化简求值:[(xy-2)²+4xy-4]÷(xy),其中x=10,y=1/25
化简求值:[(xy-2)²+4xy-4]÷(xy),其中x=10,y=1/25
[(xy-2)²+4xy-4]÷(xy)
=(x²y²-4xy+4+4xy-4)÷(xy)
=x²y²÷xy
=xy
=10×1/25
=2/5