计算[(x-1)/(x-2)-(x-2)(x-3)-(x-3)/(x-4)+(x-4)(x-5)]/(2x-7)快
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计算[(x-1)/(x-2)-(x-2)(x-3)-(x-3)/(x-4)+(x-4)(x-5)]/(2x-7)
快
原式=(38*x^2-116*x+110-4*x^3)/(x^2-6*x+8)
或原式=-2*(-19*x^2+58*x-55+2*x^3)/(x-2)/(x-4)
快啊
原式=(38*x^2-116*x+110-4*x^3)/(x^2-6*x+8)
原式=-2*(-19*x^2+58*x-55+2*x^3)/(x-2)/(x-4)
两种解法
上面的怎蘑和我一样
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