Khan/khan-exercises — Issue #5857: Simplifying radicals - Simplifying Radicals
Author: KhanBugz
Created: 2011-11-09 13:00:36+00:00
State: open
Labels: ie8, ie9, vista

there is a glitch in the system, the question ask you to simplify the radical 81 in which the answer is 9, I've double checked my answer and used all my hints but it is not accepting the answer 9, therefore i cannot move on to the next question.

[simplifying_radicals.html?seed=61&problem=perfect-squares](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=61&problem=perfect-squares&debug)

[[1,9],[1,3]]

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