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数学建模信息网

1. ladybluu 2010-06-26 于 5:31 下午

   i would be better if he broke it down all the way, and not assume that we all know the steps in between
2. IabuseWomen 2010-06-26 于 6:07 下午

   1:40… not sure how he did that… dammit.
3. tezamk 2010-06-26 于 7:04 下午

   hwo can draw this
   f(x)=(x+6):(x^2)
4. tezamk 2010-06-26 于 7:32 下午

   both answers work
   but the roots of 4 are 2 and -2
   -2+6=4
   4=4
5. wondergirlsy 2010-06-26 于 8:09 下午

   @deyomash so why did you say yea right he forgot. so both answers are possible ?
6. deyomash 2010-06-26 于 8:39 下午

   @wondergirlsy no not both are possible, only the x= 9 is possible because only that works
7. wondergirlsy 2010-06-26 于 8:51 下午

   @deyomash wait both answers are possible? can you explain?
8. albssimbad 2010-06-26 于 9:10 下午

   hey dudes this is just a review,,,the rest do it for ur self…..
9. deyomash 2010-06-26 于 9:53 下午

   yea right he forgot. so both answers are possible
10. deyomash 2010-06-26 于 10:09 下午

    this is my favourite part of maths ^^ ;-D
11. HarrysLimes 2010-06-26 于 10:48 下午

    I think you need to check your final answer more carefully. BOTH x=9 AND x=4 are solutions. You need to consider the NEGATIVE square roots – think you’ll find the square root of 4 is +2 AND -2.
12. mekka819 2010-06-26 于 11:28 下午

    I have a Math mid-term tomorrow.. Youtube please help me!!!!!
13. calitruez 2010-06-26 于 11:55 下午

    damn i wish i had his brain.
14. moondigit007 2010-06-27 于 12:05 上午

    Here is one 4 u. For every Math. teacher there are probably 20 English teachers.
15. KoFaddicted 2010-06-27 于 12:23 上午

    fuck ya!!!!!!!!!! ; )
16. Shukria123 2010-06-27 于 12:45 上午

    This is why I was a liberal arts major in college.

    Damn.
17. boynickzdoor 2010-06-27 于 1:06 上午

    oh my god,math is difficult subject for me
18. EmittingPhotons 2010-06-27 于 1:25 上午

    You need basic algebra to expand into things like calculus, which definitely is used in real life.
19. dmana3172 2010-06-27 于 2:15 上午

    If this video can teach me well in Algebra, I may become an Engineer.
20. SakoProductions 2010-06-27 于 2:39 上午

    you are right…but this is basics that sometimes we all forgot and you need to remember this for your tests in college and university
21. bigtwan81 2010-06-27 于 3:27 上午

    i always hate this what is the point you dont use this math every day in your life anyway.
22. fkyounggs 2010-06-27 于 4:07 上午

    very helpful! thank you so much
23. jacobbis4lovers 2010-06-27 于 4:21 上午

    This stuff is easy. Try taking college algebra.
24. ProfRaphaello 2010-06-27 于 4:55 上午

    What is a formula for fetting 9 and 4 at the end? Thank you.
25. dally222 2010-06-27 于 5:35 上午

    Complicated :S

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