分式计算:x²+2x/x²-6x+9÷x²-4/x²-3x/是分数线
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分式计算:x²+2x/x²-6x+9÷x²-4/x²-3x/是分数线
分式计算:x²+2x/x²-6x+9÷x²-4/x²-3x
/是分数线
分式计算:x²+2x/x²-6x+9÷x²-4/x²-3x/是分数线
分式计算:[(x²+2x)/(x²-6x+9)]÷[(x²-4)/(x²-3x)]
原式=[x(x+2)/(x-3)²]•[x(x-3)/(x+2)(x-2)]=x²/[(x-3)(x-2)]