【 】初三一道关于一元二次方程的题目+解析( 看不懂 ),题:设m是实数,求关于x的方程x²-(m+3)x+m+2=0的根.方程的系数1,-(m+3),m+2的和为0,故由根的定义知,方程有一个根是1,从而x²-(m+3
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![【 】初三一道关于一元二次方程的题目+解析( 看不懂 ),题:设m是实数,求关于x的方程x²-(m+3)x+m+2=0的根.方程的系数1,-(m+3),m+2的和为0,故由根的定义知,方程有一个根是1,从而x²-(m+3](/uploads/image/z/8524428-60-8.jpg?t=%E3%80%90+%E3%80%91%E5%88%9D%E4%B8%89%E4%B8%80%E9%81%93%E5%85%B3%E4%BA%8E%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%9A%84%E9%A2%98%E7%9B%AE%2B%E8%A7%A3%E6%9E%90%EF%BC%88+%E7%9C%8B%E4%B8%8D%E6%87%82+%EF%BC%89%2C%E9%A2%98%EF%BC%9A%E8%AE%BEm%E6%98%AF%E5%AE%9E%E6%95%B0%2C%E6%B1%82%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bx%26%23178%3B-%EF%BC%88m%2B3%EF%BC%89x%2Bm%2B2%3D0%E7%9A%84%E6%A0%B9.%E6%96%B9%E7%A8%8B%E7%9A%84%E7%B3%BB%E6%95%B01%2C-%28m%2B3%29%2Cm%2B2%E7%9A%84%E5%92%8C%E4%B8%BA0%2C%E6%95%85%E7%94%B1%E6%A0%B9%E7%9A%84%E5%AE%9A%E4%B9%89%E7%9F%A5%2C%E6%96%B9%E7%A8%8B%E6%9C%89%E4%B8%80%E4%B8%AA%E6%A0%B9%E6%98%AF1%2C%E4%BB%8E%E8%80%8Cx%26%23178%3B-%EF%BC%88m%2B3)
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