Khan/khan-exercises — Issue #13994: Simplifying expressions with exponents - wrong answer
Author: KhanBugz
Created: 2012-02-16 17:21:15+00:00
State: open
Labels: ie8, ie9, win7, wrong-or-unclear

the solution answer is not being accepted

[simplifying_expressions_with_exponents.html?seed=68&problem=simplify-exponential-form-mini](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_expressions_with_exponents.html?seed=68&problem=simplify-exponential-form-mini&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_expressions_with_exponents.html?seed=68&problem=simplify-exponential-form-mini&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%2221%5C%22%2C%5C%2215%5C%22%5D%22%2C42%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%5D)

[["21","15"]]

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; .NET4.0C; .NET4.0E)

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