Khan/khan-exercises — Issue #13077: Factoring difference of squares 1 - Repeat
Author: KhanBugz
Created: 2012-02-04 22:12:55+00:00
State: open
Labels: other, win7

I have had the same problem 3 in a row. Make a change so that I cannot have an immediate repeat.

[factoring_difference_of_squares_1.html?seed=2&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/factoring_difference_of_squares_1.html?seed=2&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/factoring_difference_of_squares_1.html?seed=2&problem=0&debug&activity=%5B%5D)

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Opera/9.80 (Windows NT 6.1; U; Edition Next; en) Presto/2.10.238 Version/12.00

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