(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)
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(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)(x-1/x²+6x+
(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)
(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)
(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)
(x-1/x²+6x+9)÷(x²-1/x+3)=(x+1/2)化简
(x-1)/(x+3)²÷(x-1)*(x+1)/(x+3)=(x+1/2)
1/(x+1)(x+3)=(x+1/2)
你是(x+0.5)还是(x+1)/2?