Such a win is enough to increase the confidence of any team because the score line is much that it means such win wasn't by accident or a team been lucky but rather show for a good performance and a good team strength which means they were intentional and did gave the best of their performance and they are still in a good form.

Against Liverpool Arsenal shouldn't be expecting it will be as easy as it was against crystal palace that they got five goals and three points rather they will definitely have a tough game because Liverpool is a bigger team and tougher team which has a better form and depth as compared to crystal palace who have a relatively weak team when compared to that which Arsenal has. I wouldn't be Hasty to conclude on the results of the game but I will rather watch and hope the best team wins.