Khan/khan-exercises — Issue #15552: Solving quadratics by factoring - error
Author: KhanBugz
Created: 2012-03-06 17:08:59+00:00
State: open
Labels: ie8, ie9, win7, wrong-or-unclear

wrong answer

[solving_quadratics_by_factoring.html?seed=12&problem=original](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_quadratics_by_factoring.html?seed=12&problem=original&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_quadratics_by_factoring.html?seed=12&problem=original&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%227%5C%22%2C%5C%22-4%5C%22%5D%22%2C44%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%227%5C%22%2C%5C%22-4%5C%22%5D%22%2C49%5D%2C%5B%22hint-activity%22%2C%220%22%2C92%5D%2C%5B%22hint-activity%22%2C%220%22%2C102%5D%2C%5B%22hint-activity%22%2C%220%22%2C105%5D%2C%5B%22hint-activity%22%2C%220%22%2C110%5D%2C%5B%22hint-activity%22%2C%220%22%2C113%5D%2C%5B%22hint-activity%22%2C%220%22%2C113%5D%5D)

[["7","-4"],["7","-4"]]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; .NET4.0E; Tablet PC 2.0)

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