求x^2+5x-6/x^2-3x+2(约分),
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求x^2+5x-6/x^2-3x+2(约分),
求x^2+5x-6/x^2-3x+2(约分),
求x^2+5x-6/x^2-3x+2(约分),
分子=x^2+5x-6=(x-1)(x+6)
分母=x^2-3x+2=(x-1)(x-2)
所以分子分母同时除以x-1,得到
分式=(x+6)/(x-2) 这里x≠1
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