哇哈哈= =係呀= =
哇哈哈= =係呀= =
339122 發表於 2009-8-1 07:01 PM https://bbs.tennyy.com/images/common/back.gif
一早做哂好D wo
你做到先得嫁= =
我上兩星期搞點,現在幾輕鬆
你d野有無十幾個作文呀 listening呀= =
你d野有無十幾個作文呀 listening呀= =
339122 發表於 2009-8-1 07:18 PM https://bbs.tennyy.com/images/common/back.gif
中英分別得幾篇閱報紙報告同閱讀理解
(2a+b)(2a-b)-4a+1
=4a^2-b^2+4a+1
=-b^2+(2a-1)^2
=(2a+b-1)(2a-b+1)
6b^2-17b/2+3
a條就諗唔到
唔記得晒d公式
可唔可以列返晒d公式出黎﹖
我回來啦＠＠
6b^2-17b/2+3
我做左啦= =抽1/2出黎就得嫁啦= =即係每個term*大2倍= =
:49;間學校太廢,唔想講