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Integer Root Illation (Posted on 2016-04-23) Difficulty: 3 of 5
Determine all possible pairs (P,Q) of positive integers such that each of the roots of:
X3 - 17X2 + Px - Q2 = 0 is an integer.

  Submitted by K Sengupta    
Rating: 5.0000 (1 votes)
Solution: (Hide)
There are precisely 4 values for the roots P and Q and these are:
  (1,8,8), 80, 8 
  (2,5,10),80, 10
  (3,6,8), 90, 12  
  (4,4,9), 88, 12
For an explanation, refer to the solution submitted by xdog in this location.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): solutionarmando2016-04-24 15:44:04
re(2): solutionxdog2016-04-24 13:25:47
re: solutionarmando2016-04-24 11:16:20
solutionxdog2016-04-24 10:26:19
No Subjectarmando2016-04-24 06:20:45
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