Khan/khan-exercises — Issue #8899: Simplifying radicals - wrong answer!
Author: KhanBugz
Created: 2011-12-17 22:51:09+00:00
State: open
Labels: chrome, lion, wrong-or-unclear

Reporter: eric@gptoyz.com

I was doing my practice problems for "simplyifying_radicals"

the question asked to simplify the square root of 225. 225 i know to be the perfect square of 15. I initially put 15 (outside the radical by itself and got the answer wrong then I entered "15" radical "0" since there are 2 blank fields which also resulted in a wrong answer. I have screen capture if you would like to see.

[simplifying_radicals.html?seed=3&problem=perfect-squares](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=3&problem=perfect-squares&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=3&problem=perfect-squares&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B15%2C0%5D%22%2C47%5D%2C%5B%22incorrect-activity%22%2C%22%5B15%2C0%5D%22%2C4370%5D%2C%5B%22correct-activity%22%2C%22%5B15%2C1%5D%22%2C5%5D%5D)

[[15,0],[15,0],[15,1]]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

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