Khan/khan-exercises — Issue #15741: Simplifying radicals - don't understand how to answer ?
Author: KhanBugz
Created: 2012-03-08 19:24:49+00:00
State: open
Labels: chrome, wrong-or-unclear, xp

[simplifying_radicals.html?seed=106&problem=perfect-squares](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=106&problem=perfect-squares&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=106&problem=perfect-squares&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B3%2C9%5D%22%2C28%5D%2C%5B%22incorrect-activity%22%2C%22%5B3%2C3%5D%22%2C38%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22incorrect-activity%22%2C%22%5B1%2C9%5D%22%2C30%5D%2C%5B%22incorrect-activity%22%2C%22%5B1%2C9%5D%22%2C8%5D%2C%5B%22incorrect-activity%22%2C%22%5B9%2C9%5D%22%2C41%5D%2C%5B%22correct-activity%22%2C%22%5B1%2C81%5D%22%2C17%5D%2C%5B%22correct-activity%22%2C%22%5B1%2C81%5D%22%2C5%5D%2C%5B%22correct-activity%22%2C%22%5B1%2C81%5D%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5B1%2C9%5D%22%2C59%5D%2C%5B%22incorrect-activity%22%2C%22%5B1%2C9%5D%22%2C21%5D%2C%5B%22incorrect-activity%22%2C%22%5B3%2C1%5D%22%2C40%5D%2C%5B%22incorrect-activity%22%2C%22%5B3%2C1%5D%22%2C4%5D%2C%5B%22correct-activity%22%2C%22%5B1%2C81%5D%22%2C31%5D%5D)

[[3,9],[3,3],[1,9],[1,9],[9,9],[1,81],[1,81],[1,81],[1,9],[1,9],[3,1],[3,1],[1,81]]

Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.66 Safari/535.11

MathJax is loaded, ready, queue length: 0