Hi, I have the following problem but I do not know what to do...what substitution should I choose? Thanks in advance!
Using a substitution of the form , or otherwise, find polynomial such that .
I am not sure...I guess it means that it is positive? It does not say anything else.
I have done it but I have got the wrong result, I think.
I used a different substitution though, , with .
A summary of my calculations is here:
Substituting back to y:
(using the fact that