关于x的一元二次方程(m+1)x²+2mx+m-3=0有两个不相等实根,且这两根又不互为相反数(1)求m的取值范围;(2)当m在取值范围内取最小的偶数时,方程的两根为x₁、x₂,求此时3x₁²
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![关于x的一元二次方程(m+1)x²+2mx+m-3=0有两个不相等实根,且这两根又不互为相反数(1)求m的取值范围;(2)当m在取值范围内取最小的偶数时,方程的两根为x₁、x₂,求此时3x₁²](/uploads/image/z/1730616-24-6.jpg?t=%E5%85%B3%E4%BA%8Ex%E7%9A%84%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B%28m%2B1%29x%26%23178%3B%2B2mx%2Bm-3%3D0%E6%9C%89%E4%B8%A4%E4%B8%AA%E4%B8%8D%E7%9B%B8%E7%AD%89%E5%AE%9E%E6%A0%B9%2C%E4%B8%94%E8%BF%99%E4%B8%A4%E6%A0%B9%E5%8F%88%E4%B8%8D%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%EF%BC%881%EF%BC%89%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%EF%BC%9B%EF%BC%882%EF%BC%89%E5%BD%93m%E5%9C%A8%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E5%86%85%E5%8F%96%E6%9C%80%E5%B0%8F%E7%9A%84%E5%81%B6%E6%95%B0%E6%97%B6%2C%E6%96%B9%E7%A8%8B%E7%9A%84%E4%B8%A4%E6%A0%B9%E4%B8%BAx%26%238321%3B%E3%80%81x%26%238322%3B%2C%E6%B1%82%E6%AD%A4%E6%97%B63x%26%238321%3B%26%23178%3B)
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