That is not a polynomial. Notice it has a division in it. It becomes infinite at 0 (triple root) and 1.2 (double root), which is not something that a polynomial with finite coefficients can have happen.
You can expand out the numerator, but that is not much of a change.
S = @(v) sym(v)
syms x
P10= -(S('0.000000000000000000000000000000131072')*(- S('1.5154155839676911728909442039037e+34')*x^10 + S('8.2506771081142959211403787378745e+34')*x^9 - S('1.8992595448506783923507009086271e+35')*x^8 + S('2.3655495760953774286575822531395e+35')*x^7 - S('1.652095984482293770493859931794e+35')*x^6 + S('5.3305646291987002322965016172684e+34')*x^5 + S('7.0517607813983145020182411184835e+33')*x^4 - S('1.353163416021423788305989629406e+34')*x^3 + S('5.2851909224935648181523245483154e+33')*x^2 - S('950949168750141165645381083597780.0')*x + S('67958017824320084984093552226347.0')))/(x^3*(S('5.0')*x - S('6.0'))^2)
[N,D] = numden(P10);
PS = simplify(expand(N))/D
