化简: 1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+2 2. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-2 3. (x/x+1 + 1/x-化简:1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+22. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-23. (x/x+1 + 1/x-1) 除以 1/x2-
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![化简: 1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+2 2. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-2 3. (x/x+1 + 1/x-化简:1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+22. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-23. (x/x+1 + 1/x-1) 除以 1/x2-](/uploads/image/z/184984-16-4.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A+1.%EF%BC%884-a2%2Fa2%2B6a%2B9%EF%BC%89+%E9%99%A4%E4%BB%A5+%EF%BC%88a-2%2F2a%2B6%EF%BC%89%2B2+2.+%283x-6%2Fx2-4%29+%E9%99%A4%E4%BB%A5+%28x%2B2%2Fx2%2B4x%2B4%29-2+3.+%EF%BC%88x%2Fx%2B1+%2B+1%2Fx-%E5%8C%96%E7%AE%80%EF%BC%9A1.%EF%BC%884-a2%2Fa2%2B6a%2B9%EF%BC%89++++%E9%99%A4%E4%BB%A5++%EF%BC%88a-2%2F2a%2B6%EF%BC%89%2B22.++%283x-6%2Fx2-4%29+++%E9%99%A4%E4%BB%A5++%28x%2B2%2Fx2%2B4x%2B4%29-23.++%EF%BC%88x%2Fx%2B1+++%2B+++1%2Fx-1%EF%BC%89++%E9%99%A4%E4%BB%A5+1%2Fx2-)
化简: 1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+2 2. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-2 3. (x/x+1 + 1/x-化简:1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+22. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-23. (x/x+1 + 1/x-1) 除以 1/x2-
化简: 1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+2 2. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-2 3. (x/x+1 + 1/x-
化简:
1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+2
2. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-2
3. (x/x+1 + 1/x-1) 除以 1/x2-1
化简: 1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+2 2. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-2 3. (x/x+1 + 1/x-化简:1.(4-a2/a2+6a+9) 除以 (a-2/2a+6)+22. (3x-6/x2-4) 除以 (x+2/x2+4x+4)-23. (x/x+1 + 1/x-1) 除以 1/x2-
①(4-2a)/(5a+15)
②3÷(-3-2X)
③X
1、(2+a)/(a+3)
2、1
3、(x+1)(x-1)
①(4-2a)/(5a+15)
②3÷(-3-2X)
③X
①(12+6a)/(a-1/a+6)+2
②(3x-3/x-4)/(x+1/x+4x+4)-2
③(1+1/x)/(1/x2-1)