I need two troubleshooting $($ one hig density $)$ I want ex on the problem low melt flow rate $($ MFR $)$ and $($ one low density $)$ I want ex on the production line is experiencing gel formation in the final product, that happened at Polyethylene plant with $($ case study with simple data applying by calculations $),$solutions, discussion, result and conclusion. $($please I need it as a mathematical problem$).$ I appreciate your effort and cooperation.