Khan/khan-exercises — Issue #15402: Adding and subtracting polynomials - answer wrong
Author: KhanBugz
Created: 2012-03-05 01:31:42+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

answer is wrong

[adding_and_subtracting_polynomials.html?seed=143&problem=add](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_polynomials.html?seed=143&problem=add&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_polynomials.html?seed=143&problem=add&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C124%5D%5D)

["None of the above."]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2

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