Khan/khan-exercises — Issue #14211: Solving quadratics by factoring - Only accepted answer is backwards
Author: KhanBugz
Created: 2012-02-20 01:59:43+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

Answer is x = -4 and x = +1 but exercise will only accept the incorrect inverse of this.

[solving_quadratics_by_factoring.html?seed=40&problem=original](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_quadratics_by_factoring.html?seed=40&problem=original&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solving_quadratics_by_factoring.html?seed=40&problem=original&debug&activity=%5B%5D)

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

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