User contributions
- 18:13, 29 August 2019 (diff | hist) . . (-2) . . m Simon's Favorite Factoring Trick (→The General Statement)
- 19:02, 14 October 2018 (diff | hist) . . (+424) . . m 2008 iTest Problems (→Problem 100)
- 19:00, 14 October 2018 (diff | hist) . . (0) . . m 2008 iTest Problems (→Problem 99)