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Equate To - 8, Get Roots (Posted on 2008-02-02) Difficulty: 3 of 5
The cubic equation y3 + by + b = 0 has three roots y1, y2 and y3 with y1 ≥ y2 ≥ y3, where b is real and non zero, such that:

y12/ y2 + y22/ y3 + y32/ y1= -8

Determine y1, y2 and y3

See The Solution Submitted by K Sengupta    
Rating: 3.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: exact solution Comment 6 of 6 |
(In reply to exact solution by Daniel)

Well done, Daniel.

I have incorporated your methodology in the official solution.
  Posted by K Sengupta on 2008-03-06 10:19:13

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