计算:(x^2-9分之1)÷(3x+1)

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计算:(x^2-9分之1)÷(3x+1)计算:(x^2-9分之1)÷(3x+1)计算:(x^2-9分之1)÷(3x+1)(x^2-1/9)÷(3x+1)=(x-1/3)(x+1/3)÷(3x+1)=(

计算:(x^2-9分之1)÷(3x+1)
计算:(x^2-9分之1)÷(3x+1)

计算:(x^2-9分之1)÷(3x+1)
(x^2-1/9)÷(3x+1)
=(x-1/3)(x+1/3)÷(3x+1)
=(x-1/3)÷3
=x/3-1/9