en_tn_lite_do_not_use/2ki/14/28.md

are they not written in the book of the events of the kings of Israel?

This question is used to remind the reader that the acts of Jehoahaz are recorded in another book. See how this phrase is translated in 2 Kings 1:18. AT: "they are written in the book of the events of the kings of Israel." (See: rc://en/ta/man/translate/figs-rquestion)

Jeroboam slept with his ancestors, with the kings of Israel

This is a polite way to say that he died and was buried. AT: "Jeroboam died, and was buried where the other kings of Israel were buried" (See: rc://en/ta/man/translate/figs-euphemism)