设m为实数,且关于x的方程x²+2mx-3m+1=0有实数根,求两根平方和的最小值.答案为-十四分之七..肯定不正确,要考虑判别式,△应大于等于0,答案应该是m等于二分之三加根号三是..有最小值...
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![设m为实数,且关于x的方程x²+2mx-3m+1=0有实数根,求两根平方和的最小值.答案为-十四分之七..肯定不正确,要考虑判别式,△应大于等于0,答案应该是m等于二分之三加根号三是..有最小值...](/uploads/image/z/1022566-22-6.jpg?t=%E8%AE%BEm%E4%B8%BA%E5%AE%9E%E6%95%B0%2C%E4%B8%94%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bx%26%23178%3B%2B2mx-3m%2B1%3D0%E6%9C%89%E5%AE%9E%E6%95%B0%E6%A0%B9%2C%E6%B1%82%E4%B8%A4%E6%A0%B9%E5%B9%B3%E6%96%B9%E5%92%8C%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC.%E7%AD%94%E6%A1%88%E4%B8%BA-%E5%8D%81%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%83..%E8%82%AF%E5%AE%9A%E4%B8%8D%E6%AD%A3%E7%A1%AE%EF%BC%8C%E8%A6%81%E8%80%83%E8%99%91%E5%88%A4%E5%88%AB%E5%BC%8F%EF%BC%8C%E2%96%B3%E5%BA%94%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E0%EF%BC%8C%E7%AD%94%E6%A1%88%E5%BA%94%E8%AF%A5%E6%98%AFm%E7%AD%89%E4%BA%8E%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%89%E5%8A%A0%E6%A0%B9%E5%8F%B7%E4%B8%89%E6%98%AF..%E6%9C%89%E6%9C%80%E5%B0%8F%E5%80%BC...)
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