已知2+4y2-4x+4y+5=0,求x四次方-y的四次方/xy乘以2x2-xy/xy-y2除以(y分之x2+y2)2
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![已知2+4y2-4x+4y+5=0,求x四次方-y的四次方/xy乘以2x2-xy/xy-y2除以(y分之x2+y2)2](/uploads/image/z/1073021-5-1.jpg?t=%E5%B7%B2%E7%9F%A52%2B4y2-4x%2B4y%2B5%3D0%2C%E6%B1%82x%E5%9B%9B%E6%AC%A1%E6%96%B9-y%E7%9A%84%E5%9B%9B%E6%AC%A1%E6%96%B9%2Fxy%E4%B9%98%E4%BB%A52x2-xy%2Fxy-y2%E9%99%A4%E4%BB%A5%28y%E5%88%86%E4%B9%8Bx2%2By2%292)
已知2+4y2-4x+4y+5=0,求x四次方-y的四次方/xy乘以2x2-xy/xy-y2除以(y分之x2+y2)2
已知2+4y2-4x+4y+5=0,求x四次方-y的四次方/xy乘以2x2-xy/xy-y2除以(y分之x2+y2)2
已知2+4y2-4x+4y+5=0,求x四次方-y的四次方/xy乘以2x2-xy/xy-y2除以(y分之x2+y2)2
把题写纸上传个图片吧,这样题目有歧义啊