已知关于x的方程mx²-(3m-1)x+2m-2=0若一元二次方程mx²-(3m-1)x+2m-2=0的两个实数根分别为x1,x2.且x1+x2的绝对值是2,求m 题目我打错了 是x1-x2的绝对值是2
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![已知关于x的方程mx²-(3m-1)x+2m-2=0若一元二次方程mx²-(3m-1)x+2m-2=0的两个实数根分别为x1,x2.且x1+x2的绝对值是2,求m 题目我打错了 是x1-x2的绝对值是2](/uploads/image/z/1240751-47-1.jpg?t=%E5%B7%B2%E7%9F%A5%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bmx%26%23178%3B-%EF%BC%883m-1%EF%BC%89x%2B2m-2%3D0%E8%8B%A5%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8Bmx%26%23178%3B-%EF%BC%883m-1%EF%BC%89x%2B2m-2%3D0%E7%9A%84%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%E5%88%86%E5%88%AB%E4%B8%BAx1%2Cx2.%E4%B8%94x1%2Bx2%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E6%98%AF2%2C%E6%B1%82m+%E9%A2%98%E7%9B%AE%E6%88%91%E6%89%93%E9%94%99%E4%BA%86+%E6%98%AFx1-x2%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E6%98%AF2)
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