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Geometric Rubric (Posted on 2015-04-04) Difficulty: 3 of 5
The four roots of 16x4mx3+ (2m + 17)x2- mx+16 = 0 are distinct and in geometric sequence.

Determine m and solve the equation.

No Solution Yet Submitted by K Sengupta    
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Something cool I never knew about polynomials (hint) | Comment 1 of 2
Since I explored and solved this over a couple of days when this was in the queue - it was relevant to what my class was studying - I won't give the solution.

The cool thing  (which is easy to show) is whenever a polynomial has terms that are "palindromic" the roots come in pairs that are reciprocals.

ax^n + bx^(n-1) + cx^(n-2) + ... + cx^2 + bx + a



  Posted by Jer on 2015-04-04 14:52:45
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