If p , q, r are the roots of \(\displaystyle x^3-6x^2+3x+1=0,\)
determine the possible values of \(\displaystyle p^2q+q^2r+r^2p.\)
Also find \(\displaystyle |(p-q)(q-r)(r-p)|.\)

I have attached the pictures of my attempt.

I need 1 more equation of the terms to find the solution.