User contributions
- 16:05, 31 May 2022 (diff | hist) . . (+117) . . N Talk:2011 AMC 12A Problems/Problem 20 (Created page with "An easier way to solve is to guess and check. <math>a=2</math> and <math>b=-7</math> and thus <math>c=5</math> works!") (current)
