Help on Generating function - Analysis of Median of three - Quick Select

[ami]

Hi,

I have posted a question related to analysis of median of 3 - Quick select complexity using Generating function. http://math.stackexchange.com/quest...tion-analysis-of-median-of-three-quick-select

 

[Deleted member 4993]

Hi,

I have posted a question related to analysis of median of 3 - Quick select complexity using Generating function. http://math.stackexchange.com/quest...tion-analysis-of-median-of-three-quick-select

And....

 

[ami]

And....

I am stuck at solving equation 3.2. Can you please help me in solving it?
what is the close form equation of following polynomials?

​