已知函数f(x)=(x²+ax+a)/x,x∈[1,+∞),且af(5-2m),m取若函数g(x)=x·f(x)对任意x∈[1,3]时,g(x)+2x+10>0恒成立,求a的取值范围急用、急急急
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![已知函数f(x)=(x²+ax+a)/x,x∈[1,+∞),且af(5-2m),m取若函数g(x)=x·f(x)对任意x∈[1,3]时,g(x)+2x+10>0恒成立,求a的取值范围急用、急急急](/uploads/image/z/8321701-13-1.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3D%28x%26sup2%3B%2Bax%2Ba%29%2Fx%2Cx%E2%88%88%5B1%2C%2B%E2%88%9E%EF%BC%89%2C%E4%B8%94af%285-2m%29%2Cm%E5%8F%96%E8%8B%A5%E5%87%BD%E6%95%B0g%28x%29%3Dx%C2%B7f%28x%29%E5%AF%B9%E4%BB%BB%E6%84%8Fx%E2%88%88%5B1%2C3%5D%E6%97%B6%2Cg%28x%29%2B2x%2B10%3E0%E6%81%92%E6%88%90%E7%AB%8B%2C%E6%B1%82a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%80%A5%E7%94%A8%E3%80%81%E6%80%A5%E6%80%A5%E6%80%A5)
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