题目内容

设某厂某产品的需求函数为Q=116-2P，其中P(万元)为每吨产品的销售价格，Q(吨)为需求量．若生产该产品的固定成本为100(万元)，且每多生产1吨产品，成本增加2(万元)．在产销平衡的情况下：求收益R与销售价格P的函数关系R(P)

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