1、a/(1-bx)=b/(1-ax) (a≠0,b≠0)2、4/(x+5)-3/(x+4)=2/(x+3)-1/(x+2)3、(x-1/x)^2-2/9(x+1/x)+9=0我刚学,
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![1、a/(1-bx)=b/(1-ax) (a≠0,b≠0)2、4/(x+5)-3/(x+4)=2/(x+3)-1/(x+2)3、(x-1/x)^2-2/9(x+1/x)+9=0我刚学,](/uploads/image/z/15118730-26-0.jpg?t=1%E3%80%81a%2F%281-bx%29%3Db%2F%281-ax%29+%EF%BC%88a%E2%89%A00%2Cb%E2%89%A00%EF%BC%892%E3%80%814%2F%28x%2B5%29-3%2F%28x%2B4%29%3D2%2F%28x%2B3%29-1%2F%28x%2B2%293%E3%80%81%EF%BC%88x-1%2Fx%EF%BC%89%5E2-2%2F9%28x%2B1%2Fx%29%2B9%3D0%E6%88%91%E5%88%9A%E5%AD%A6%EF%BC%8C)
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