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20楼#
发布于：2013-04-02 22:03
啊啊啊啊啊啊啊啊啊
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21楼#
发布于：2013-04-05 21:08
第一题答案： a-2/(a+2)(a-1)
第二题答案：2(a-b)/a-2b |
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22楼#
发布于：2013-04-06 11:11
1,a-2\(a+2)(a-1)
2,2a-2b\a-2b |
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23楼#
发布于：2013-04-07 18:22
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24楼#
发布于：2013-04-20 09:11
方法一定要学啊
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25楼#
发布于：2013-04-20 10:48
henqidaihenqidai
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26楼#
发布于：2013-04-26 11:52
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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27楼#
发布于：2013-05-02 20:18
a-2
1. --- ----------- a-1*a+2 2a-2b 2.-------------- a-2b |
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28楼#
发布于：2013-05-03 10:59
2）的答案是2a-2b/a-2b
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29楼#
发布于：2013-05-04 09:50
(1) (a-2)/(a-1)(a+2)
(2) 2(a-b)/(a-2b) |
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