一元二次方程 (19 17:14:39)商场销售某种商品,一月份销售了若干件,供货利润30000元,二月份把这种商品的单价降低了0.4元,但销售量比一月份增加了5000间,从而获得的利润比一月份多2000元,则讲价
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![一元二次方程 (19 17:14:39)商场销售某种商品,一月份销售了若干件,供货利润30000元,二月份把这种商品的单价降低了0.4元,但销售量比一月份增加了5000间,从而获得的利润比一月份多2000元,则讲价](/uploads/image/z/225416-56-6.jpg?t=%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B+%2819+17%3A14%3A39%29%E5%95%86%E5%9C%BA%E9%94%80%E5%94%AE%E6%9F%90%E7%A7%8D%E5%95%86%E5%93%81%2C%E4%B8%80%E6%9C%88%E4%BB%BD%E9%94%80%E5%94%AE%E4%BA%86%E8%8B%A5%E5%B9%B2%E4%BB%B6%2C%E4%BE%9B%E8%B4%A7%E5%88%A9%E6%B6%A630000%E5%85%83%2C%E4%BA%8C%E6%9C%88%E4%BB%BD%E6%8A%8A%E8%BF%99%E7%A7%8D%E5%95%86%E5%93%81%E7%9A%84%E5%8D%95%E4%BB%B7%E9%99%8D%E4%BD%8E%E4%BA%860.4%E5%85%83%2C%E4%BD%86%E9%94%80%E5%94%AE%E9%87%8F%E6%AF%94%E4%B8%80%E6%9C%88%E4%BB%BD%E5%A2%9E%E5%8A%A0%E4%BA%865000%E9%97%B4%2C%E4%BB%8E%E8%80%8C%E8%8E%B7%E5%BE%97%E7%9A%84%E5%88%A9%E6%B6%A6%E6%AF%94%E4%B8%80%E6%9C%88%E4%BB%BD%E5%A4%9A2000%E5%85%83%2C%E5%88%99%E8%AE%B2%E4%BB%B7)
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