Y=2443/15X-50X的平方.(0对不起,写错了,应该是y=171*X-X^2/50.(0
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![Y=2443/15X-50X的平方.(0对不起,写错了,应该是y=171*X-X^2/50.(0](/uploads/image/z/14679716-68-6.jpg?t=Y%3D2443%2F15X-50X%E7%9A%84%E5%B9%B3%E6%96%B9.%280%E5%AF%B9%E4%B8%8D%E8%B5%B7%2C%E5%86%99%E9%94%99%E4%BA%86%2C%E5%BA%94%E8%AF%A5%E6%98%AFy%3D171%2AX-X%5E2%2F50.%280)
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