Art of Problem Solving
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2001 AMC 12 Problems/Problem 21: Revision history

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18 September 2023

18 April 2022

7 August 2020

17 October 2019

  • curprev 13:1013:10, 17 October 2019 Nosysnow talk contribs 1,803 bytes +241 Basically, the problem displayed on the page was the incorrect problem from the AMC, and the solution didn't make sense in context of the incorrect problem. I have edited to replace the incorrect problem with the correct problem.

6 July 2019

19 May 2019

17 May 2019

13 November 2017

30 July 2017

10 July 2017

11 July 2015

18 February 2015

3 July 2013

15 February 2009

  • curprev 09:5809:58, 15 February 2009 Misof talk contribs 1,647 bytes +1,647 New page: == Problem == Four positive integers <math>a</math>, <math>b</math>, <math>c</math>, and <math>d</math> have a product of <math>8!</math> and satisfy: <cmath> \begin{align*} ab + a + b &...