Khan/khan-exercises — Issue #12346: Completing the square 1 - answer is correct, told it was wrong
Author: KhanBugz
Created: 2012-01-28 14:36:50+00:00
State: open
Labels: ie8, other, win7

Folks,

the answer to this problem x = -4 or x = 8 is graded as incorrect.

If you submit the answer as x = 8 or x = -4, it is graded as correct.

[completing_the_square_1.html?seed=24&problem=original](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/completing_the_square_1.html?seed=24&problem=original&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/completing_the_square_1.html?seed=24&problem=original&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22-4%5C%22%2C%5C%228%5C%22%5D%22%2C247%5D%2C%5B%22hint-activity%22%2C%220%22%2C230%5D%2C%5B%22hint-activity%22%2C%220%22%2C232%5D%2C%5B%22hint-activity%22%2C%220%22%2C247%5D%2C%5B%22hint-activity%22%2C%220%22%2C249%5D%2C%5B%22hint-activity%22%2C%220%22%2C253%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-4%5C%22%2C%5C%228%5C%22%5D%22%2C277%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%228%5C%22%2C%5C%22-4%5C%22%5D%22%2C10%5D%5D)

[["-4","8"],["-4","8"],["8","-4"]]

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