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4everluv 发表于 2006-10-19 02:50:33

回复: English Chatroom (想练习英语的就来啊^^)

how do you know it is 2

have u learned the sign rule? there are one sign changes if u subs. x into the equation (it tells u there's one positive solution in the answer); if u substitute-x in it, there are 2 sign changes takes place(it tells u there are 2 or 0 (it could be imaginary numbers) negative real #solutions
remember this will increase the chances of guessing correctly and not waste ur time~

it should be a factor of 24, usually. My first attemp was x = -2, merely from my instinct. Normally people have to try 3 times to get it right. Here i...
err, i dont think it's someones innate abi. to get that... the reason u got it b/c uve learned it and had enough practice = = |||

4everluv 发表于 2006-10-19 02:53:31

回复: English Chatroom (想练习英语的就来啊^^)

it should be a factor of 24, usually. My first attemp was x = -2, merely from my instinct. Normally people have to try 3 times to get it right. Here i...
more specifically, it should be the factors of the constant over(divide by) the factors of the leading coefficient(which is 1 in this case..)

sry candy if it confuses u...
cr*p...no more math for Mel.... i suck at teaching ...

4everluv 发表于 2006-10-19 04:05:54

回复: English Chatroom (想练习英语的就来啊^^)

its an halfday for MEl today~ yeah, NG and candy,cant wait to see u^^

SoloSurViVOR 发表于 2006-10-19 04:08:17

SoloSurViVOR 发表于 2006-10-19 04:11:28

SoloSurViVOR 发表于 2006-10-19 04:14:36

SoloSurViVOR 发表于 2006-10-19 04:15:31

4everluv 发表于 2006-10-19 04:21:22

回复: English Chatroom (想练习英语的就来啊^^)

NG will prolly be on in 2 hours... waiting for her...

4everluv 发表于 2006-10-19 04:22:23

回复: English Chatroom (想练习英语的就来啊^^)

ill study a little bit then

SoloSurViVOR 发表于 2006-10-19 04:23:24

hiddern70 发表于 2006-10-19 04:23:52

回复: English Chatroom (想练习英语的就来啊^^)

Oh La. So good to see you guys.

SoloSurViVOR 发表于 2006-10-19 04:24:45

hiddern70 发表于 2006-10-19 04:25:13

回复: English Chatroom (想练习英语的就来啊^^)

I am so good to see you guys here. I have been wait for couple hours.

SoloSurViVOR 发表于 2006-10-19 04:25:36

SoloSurViVOR 发表于 2006-10-19 04:26:31

4everluv 发表于 2006-10-19 04:27:29

回复: English Chatroom (想练习英语的就来啊^^)

I can't wait to see her. :012:
u gonna make her sick.... u know that?

hiddern70 发表于 2006-10-19 04:29:04

回复: English Chatroom (想练习英语的就来啊^^)

Don't you have any classes today?

My class in today is over at 12 am. And I am revising my paper and doing HW in the lab.

4everluv 发表于 2006-10-19 04:29:39

回复: English Chatroom (想练习英语的就来啊^^)

I am so good to see you guys here. I have been wait for couple hours.
hi 70, nice to see u..
i hope u have figured out the reason that we hide our messages

there's just one person whom we cant get along with.....

SoloSurViVOR 发表于 2006-10-19 04:33:24

SoloSurViVOR 发表于 2006-10-19 04:35:11

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