[中學] 解方程式
最近在幫小朋友算東西 用到國中解方程式的觀念
不過國中數學已經忘光光了@@.......
以下未知數 X 要如何解呢? ^2表平方 ^3表三次方
550/(1+X) + 605/(1+X)^2 + 665.5/(1+X)^3 - 1000=0
印象中 這個是叫 一元三次方程式嗎?
我算不出X 有什麼快的方法呢 @@.....
希望大家幫幫我 ..... 答案給的是 0.355
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◆ From: 118.161.187.46
※ 編輯: pink7954 來自: 118.161.187.46 (03/20 22:50)
※ 編輯: pink7954 來自: 118.161.187.46 (03/20 22:50)
推
03/20 22:57, , 1F
03/20 22:57, 1F
推
03/20 23:02, , 2F
03/20 23:02, 2F
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03/20 23:03, , 3F
03/20 23:03, 3F
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03/20 23:03, , 4F
03/20 23:03, 4F
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03/20 23:04, , 5F
03/20 23:04, 5F
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03/20 23:07, , 6F
03/20 23:07, 6F
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03/21 00:23, , 7F
03/21 00:23, 7F
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03/21 00:23, , 8F
03/21 00:23, 8F
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03/21 00:55, , 9F
03/21 00:55, 9F
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03/21 00:57, , 10F
03/21 00:57, 10F
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03/21 00:57, , 11F
03/21 00:57, 11F
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03/21 00:59, , 12F
03/21 00:59, 12F
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03/21 00:59, , 13F
03/21 00:59, 13F
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03/21 04:56, , 14F
03/21 04:56, 14F
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03/21 08:46, , 15F
03/21 08:46, 15F
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03/21 21:15, , 16F
03/21 21:15, 16F
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03/21 21:17, , 17F
03/21 21:17, 17F
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03/22 09:51, , 18F
03/22 09:51, 18F
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03/22 09:53, , 19F
03/22 09:53, 19F
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03/22 09:53, , 20F
03/22 09:53, 20F
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03/22 16:19, , 21F
03/22 16:19, 21F
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08/13 16:44, , 22F
08/13 16:44, 22F
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09/17 14:40, , 23F
09/17 14:40, 23F
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