post page is indexed many time

hello

so I created a post today

http://www.gadgetsrepair.co/blog/entry/laptop-overheats-and-shuts-down-hp-g7-laptop-repair.html

then I went t RSSEO to change the title and meta kewords.

my question is why I find many duplicate pages, same title, but the item ID is different(please check the attached picture)

which one I should edit to optimize my SEO, do I have to delete the other pages?

thanks