Khan/khan-exercises — Issue #13477: Completing the square 1 - i awserd a question 
Author: KhanBugz
Created: 2012-02-09 16:18:52+00:00
State: open
Labels: hard, ie8, ie9, win7

i put x=-7 it said it was wrong then i asked the website and it said x=−7 why is mine wrong.

[completing_the_square_1.html?seed=59&problem=one-root](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/completing_the_square_1.html?seed=59&problem=one-root&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/completing_the_square_1.html?seed=59&problem=one-root&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22X%3D-7%5C%22%5D%22%2C61%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22X%3D7%5C%22%5D%22%2C26%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22X%3D-7%5C%22%5D%22%2C21%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22X%3D-7%5C%22%5D%22%2C15%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22X%3D-7%5C%22%5D%22%2C18%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D-7%5C%22%5D%22%2C8%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D%20-7%5C%22%5D%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%20%3D%20-7%5C%22%5D%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D-7%5C%22%5D%22%2C44%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D-7%5C%22%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D-7%5C%22%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D-7%5C%22%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D-7%5C%22%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D(-7\)%5C%22%5D%22%2C29%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D_7%5C%22%5D%22%2C23%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%3D%20-7%5C%22%5D%22%2C14%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22x%20%3D%20-7%5C%22%5D%22%2C5%5D%5D)

[["X=-7"],["X=7"],["X=-7"],["X=-7"],["X=-7"],["x=-7"],["x= -7"],["x = -7"],["x=-7"],["x=-7"],["x=-7"],["x=-7"],["x=-7"],["x=(-7)"],["x=_7"],["x= -7"],["x = -7"]]

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.3; .NET4.0C)

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