Brilliant_Picture_73 | 1 points | Apr 21 2021 10:22:44

已经初步学习好十字相乘法啦!今天打算先做些题把十字相乘法学完哇!

https://preview.redd.it/k6q1flqc6iu61.png?width=1610&format=png&auto=webp&s=434d8d92b76effbf21f28c484e54d56eddbc2d85

[-] Stunning_Stubborn284 | 7 points | Apr 21 2021 10:24:25

别炒作了

[-] Brilliant_Picture_73 | 2 points | Apr 21 2021 10:28:13

?不是有人厌烦天天建政,我就发了学习贴也算炒作?早该改改了!

[-] Brilliant_Picture_73 | 2 points | Apr 21 2021 10:25:01

我的理解就是把二次项和常数项拆开为两个数乘积交叉相乘

[-] Brilliant_Picture_73 | 2 points | Apr 21 2021 10:27:08

如果有不理解的我又发了一张简单分析图

[-] Yimoc | 2 points | Apr 21 2021 10:27:41

让刑平来做做?

[-] ithinkitismyduty | 2 points | Apr 21 2021 11:00:09

什么高中生,祝你卷进985

[-] fapfap552 | 1 points | Apr 21 2021 10:30:20

别笑了,我英语也是初中水平的

[-] Brilliant_Picture_73 | 2 points | Apr 21 2021 10:32:43

背背10种词性,9,8试试?

[-] fapfap552 | 1 points | Apr 21 2021 10:33:23

别问了,我英语是小学水平的行了吧

[-] honglaohai2283 | 1 points | Apr 21 2021 10:37:10

什么初中生

[-] Brilliant_Picture_73 | 1 points | Apr 21 2021 10:43:38

给你做一首诗 🤗🤗🤗墙角数枝梅,淋寒毒自开。疣知不是雪,唯有艾香来

[-] lbxyb | 1 points | Apr 21 2021 10:51:57

居然还有印象

[-] end12306 | 1 points | Apr 21 2021 10:52:12

和小e成立学习小组吧

[-] Quick-Accident2555 | 1 points | Apr 21 2021 10:55:28

懂哥快教我量子波动速读法!

[-] drlong10th | 1 points | Apr 21 2021 11:05:15

是typora么

[-] chongkai_bot | 1 points | Apr 21 2021 13:56:26

十字相乘本质上就是嗯凑,,,

[-] [deleted] | 1 points | Apr 21 2021 16:33:14

[deleted]

[-] 1igansss | 1 points | Apr 21 2021 16:35:30

如果是国内高中数学有一个窍门就是刷题,嗯刷大题提高很快,国外的话就不懂了,建议提前学数学分析和线性代数,大学会用的很多