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yanyangao

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ÒýÓûØÌû:
2Â¥: Originally posted by zuqiuha at 2013-04-20 22:52:11
¾ÍÊǵÈÓÚ24+36=60kmѽ£¡

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3Â¥2013-04-20 23:33:50
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zuqiuha

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yanyangao: ½ð±Ò+1, ¡ïÓаïÖú 2013-04-20 23:44:21
¾ÍÊǵÈÓÚ24+36=60kmѽ£¡
2Â¥2013-04-20 22:52:11
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leedobb

½ð³æ (ÕýʽдÊÖ)

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24£ºL-24 = L +36: 2L-36
24(2L-36) = (L-24)(L+36)
48L =L^2+(36-24)L

L= 36

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4Â¥2013-04-20 23:42:42
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yanyangao

Í­³æ (СÓÐÃûÆø)

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ÒýÓûØÌû:
4Â¥: Originally posted by leedobb at 2013-04-20 23:42:42
ÉèΪL
24£ºL-24 = L +36: 2L-36
24(2L-36) = (L-24)(L+36)
48L =L^2+(36-24)L

L= 36

5Â¥2013-04-20 23:46:34
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