t^3*(125*t^2-1)*(2*t-1)^3*(2*t+1)^3*D^4+2*t^2*(3500*t^4-645*t^2+3)*(2*t-1)^2*(2*t+1)^2*D^3+t*(2*t-1)*(2*t+1)*(108000*t^6-40504*t^4+3283*t^2-7)*D^2+(480000*t^8-278208*t^6+48636*t^4-2033*t^2+1)*D+160*t*(600*t^6-328*t^4+54*t^2-1)