Khan/khan-exercises — Issue #8551: Simplifying radicals - Simplifying Radicals: Video leaves me confused
Author: KhanBugz
Created: 2011-12-13 18:49:48+00:00
State: open
Labels: chrome, hard, vista

When answering the square root problem (such as 99) I'm told to leave the square root part (such as 3^2) as simply 3 and the answer to the square root the number I multiply it by (such as 11). Well is not 3^2 a square root? Why is the answer (3 and SR 11) and not (11 and SR 3)?

[simplifying_radicals.html?seed=191&problem=not-yet-simple](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=191&problem=not-yet-simple&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_radicals.html?seed=191&problem=not-yet-simple&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B1%2C99%5D%22%2C40%5D%2C%5B%22correct-activity%22%2C%22%5B1%2C99%5D%22%2C1%5D%2C%5B%22correct-activity%22%2C%22%5B1%2C99%5D%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%5D)

[[1,99],[1,99],[1,99]]

Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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