x-3分之1-x^2-9分之6-6+2x分之x-1(最简公分母)

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x-3分之1-x^2-9分之6-6+2x分之x-1(最简公分母)

x-3分之1-x^2-9分之6-6+2x分之x-1(最简公分母)
x-3分之1-x^2-9分之6-6+2x分之x-1(最简公分母)

x-3分之1-x^2-9分之6-6+2x分之x-1(最简公分母)
原式=1/(x-3)-6/(x+3)(x-3)-(x-1)/2(x+3)
=[2(x+3)-12-(x-1)(x-3)]/[2(x+3)(x-3)]
=(2x+6-12-x²+4x-3)/[2(x+3)(x-3)]
=-(x²-6x+9)/[2(x+3)(x-3)]
=-(x-3)²/[2(x+3)(x-3)]
=(3-x)/(2x+6)