已知一元二次方程x²-2x+m=0.(1)若方程有两个实数根,求m的范围;(2)若方程的两个实数根为x1,x2,且x1+3x2=3,求m的值2.目前,低碳已成为保护地球环境的热门话题。风能是一种清洁能源,
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![已知一元二次方程x²-2x+m=0.(1)若方程有两个实数根,求m的范围;(2)若方程的两个实数根为x1,x2,且x1+3x2=3,求m的值2.目前,低碳已成为保护地球环境的热门话题。风能是一种清洁能源,](/uploads/image/z/989615-47-5.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8Bx%26%23178%3B-2x%2Bm%3D0%EF%BC%8E%EF%BC%881%EF%BC%89%E8%8B%A5%E6%96%B9%E7%A8%8B%E6%9C%89%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%2C%E6%B1%82m%E7%9A%84%E8%8C%83%E5%9B%B4%EF%BC%9B%EF%BC%882%EF%BC%89%E8%8B%A5%E6%96%B9%E7%A8%8B%E7%9A%84%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%E4%B8%BAx1%2Cx2%2C%E4%B8%94x1%2B3x2%3D3%2C%E6%B1%82m%E7%9A%84%E5%80%BC2.%E7%9B%AE%E5%89%8D%EF%BC%8C%E4%BD%8E%E7%A2%B3%E5%B7%B2%E6%88%90%E4%B8%BA%E4%BF%9D%E6%8A%A4%E5%9C%B0%E7%90%83%E7%8E%AF%E5%A2%83%E7%9A%84%E7%83%AD%E9%97%A8%E8%AF%9D%E9%A2%98%E3%80%82%E9%A3%8E%E8%83%BD%E6%98%AF%E4%B8%80%E7%A7%8D%E6%B8%85%E6%B4%81%E8%83%BD%E6%BA%90%EF%BC%8C)
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