User contributions
- 10:38, 26 August 2020 (diff | hist) . . (+26) . . m 2007 AMC 10B Problems/Problem 25 (→Solution 1)
- 10:37, 26 August 2020 (diff | hist) . . (+2) . . m 2007 AMC 10B Problems/Problem 25 (→Solution 1)
- 10:14, 26 August 2020 (diff | hist) . . (+1,166) . . Simon's Favorite Factoring Trick (→The General Statement)
