先化简,再求值:(3x+4/x²-1-2/x-1)÷x+2/x²-2x+1
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先化简,再求值:(3x+4/x²-1-2/x-1)÷x+2/x²-2x+1
先化简,再求值:(3x+4/x²-1-2/x-1)÷x+2/x²-2x+1
先化简,再求值:(3x+4/x²-1-2/x-1)÷x+2/x²-2x+1