59×(1+r)-1+59×(1+r)-2+59×(1+r)-3+59X(1+r)-4+(59+1250)×(1+r)-5=1000(元),r=10%r是怎么计算出来的,求具体解法(1+r)-2是负二次幂,电脑显示不出
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![59×(1+r)-1+59×(1+r)-2+59×(1+r)-3+59X(1+r)-4+(59+1250)×(1+r)-5=1000(元),r=10%r是怎么计算出来的,求具体解法(1+r)-2是负二次幂,电脑显示不出](/uploads/image/z/3995181-45-1.jpg?t=59%C3%97%EF%BC%881%2Br%EF%BC%89-1%2B59%C3%97%EF%BC%881%2Br%EF%BC%89-2%2B59%C3%97%EF%BC%881%2Br%EF%BC%89-3%2B59X%EF%BC%881%2Br%EF%BC%89-4%2B%EF%BC%8859%2B1250%EF%BC%89%C3%97%EF%BC%881%2Br%EF%BC%89-5%3D1000%EF%BC%88%E5%85%83%EF%BC%89%2Cr%3D10%25r%E6%98%AF%E6%80%8E%E4%B9%88%E8%AE%A1%E7%AE%97%E5%87%BA%E6%9D%A5%E7%9A%84%2C%E6%B1%82%E5%85%B7%E4%BD%93%E8%A7%A3%E6%B3%95%EF%BC%881%2Br%EF%BC%89-2%E6%98%AF%E8%B4%9F%E4%BA%8C%E6%AC%A1%E5%B9%82%EF%BC%8C%E7%94%B5%E8%84%91%E6%98%BE%E7%A4%BA%E4%B8%8D%E5%87%BA)
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