Khan/khan-exercises — Issue #8780: Lhopitals rule - My answer matches your answer but I still get wrong answer
Author: KhanBugz
Created: 2011-12-15 22:42:05+00:00
State: open
Labels: chrome, vista, wrong-or-unclear

Reporter: mr_samuray@hotmail.com

Hello Khanacademy,

the question "lim((-3x^2+x)/(6x^2-3x)) x->0
in the practice moment with Lhopitals rule, I solved it in two different ways, 1) with Lhopitals rule and the second, 2) with factorising out x and then reduce the variables. I got the answer (-(1/3)) and the site said I was wrong on that, but I checked the hints and my answer was right. I just wanted to notify you that it is a bug or something wrong with writing the answer in there.

Best regards
Sam Ebadeh

[lhopitals_rule.html?seed=176&problem=polynomial](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/lhopitals_rule.html?seed=176&problem=polynomial&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/lhopitals_rule.html?seed=176&problem=polynomial&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%221%2F-3%5C%22%22%2C61%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-(1%2F3\)%5C%22%22%2C56%5D%2C%5B%22hint-activity%22%2C%220%22%2C41%5D%2C%5B%22hint-activity%22%2C%220%22%2C48%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-(1%2F2\)%5C%22%22%2C69%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22correct-activity%22%2C%22%5C%221%2F-3%5C%22%22%2C10%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221%2F(%2C3\)%5C%22%22%2C10%5D%2C%5B%22incorrect-activity%22%2C%22%5C%221%2F(-3\)%5C%22%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22(-(1%2F3\)\)%5C%22%22%2C9%5D%5D)

["1/-3","-(1/3)","-(1/2)","1/-3","1/(,3)","1/(-3)","(-(1/3))"]

Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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