[中學] 完全平方數
懇請版上高手幫忙解惑,謝謝。
http://i.imgur.com/NvUZIbv.jpg

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推
09/22 01:45, , 1F
09/22 01:45, 1F
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09/22 01:52, , 2F
09/22 01:52, 2F
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09/22 01:56, , 3F
09/22 01:56, 3F
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09/22 08:27, , 4F
09/22 08:27, 4F
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09/22 08:28, , 5F
09/22 08:28, 5F
推
09/22 10:47, , 6F
09/22 10:47, 6F
推
09/22 10:54, , 7F
09/22 10:54, 7F
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