Khan/khan-exercises — Issue #12362: Quadratic equation - Wrong answer?
Author: KhanBugz
Created: 2012-01-28 23:44:56+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

Reporter: thepyne@gmail.com

the answer I calculated and the answer for the final step are the same, but the set of answers do not contain this conclusion. Is a step missing or is the answer key incorrect?

[quadratic_equation.html?seed=119&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadratic_equation.html?seed=119&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadratic_equation.html?seed=119&problem=0&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C239%5D%2C%5B%22hint-activity%22%2C%220%22%2C241%5D%2C%5B%22hint-activity%22%2C%220%22%2C242%5D%2C%5B%22hint-activity%22%2C%220%22%2C243%5D%2C%5B%22hint-activity%22%2C%220%22%2C251%5D%2C%5B%22hint-activity%22%2C%220%22%2C255%5D%2C%5B%22hint-activity%22%2C%220%22%2C266%5D%5D)

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Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7

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