已知集合A={x|x²-4mx+2m+6=0,x∈R},B={x|x<0,x∈R},若A∩B=空集,求实数m的取值范围.
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![已知集合A={x|x²-4mx+2m+6=0,x∈R},B={x|x<0,x∈R},若A∩B=空集,求实数m的取值范围.](/uploads/image/z/3906428-68-8.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Bx%7Cx%26%23178%3B-4mx%2B2m%2B6%3D0%2Cx%E2%88%88R%7D%2CB%3D%7Bx%7Cx%EF%BC%9C0%2Cx%E2%88%88R%7D%2C%E8%8B%A5A%E2%88%A9B%3D%E7%A9%BA%E9%9B%86%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.)
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