计算3x+2/x^2-5x+6-2x+3/x^2-5x6+x-3/x^2-5x+6
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计算3x+2/x^2-5x+6-2x+3/x^2-5x6+x-3/x^2-5x+6计算3x+2/x^2-5x+6-2x+3/x^2-5x6+x-3/x^2-5x+6计算3x+2/x^2-5x+6-2x
计算3x+2/x^2-5x+6-2x+3/x^2-5x6+x-3/x^2-5x+6
计算3x+2/x^2-5x+6-2x+3/x^2-5x6+x-3/x^2-5x+6
计算3x+2/x^2-5x+6-2x+3/x^2-5x6+x-3/x^2-5x+6
(3x+2)/(x²-5x+6)-(2x+3)/(x²-5x6)+(x-3)/(x²-5x+6)
=(3x+2-2x-3+x-3)/(x²-5x+6)
=(2x-4)/(x²-5x+6)
=【2(x-2)】/【(x-2)(x-3)】
=2/(x-3)
原式=(3x+2-2x-3+x-3)/(x²-5x+6)
=(2x-4)/(x²-5x+6)
=2(x-2)/(x-2)(x-3)
=2/(x-3)
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