I'd first check that it is even possible to change them out as sometimes it is soldered to the motherboard. I'd look up some teardown articles on your laptop. If it is not soldered, the format of the RAM is most likely SODIMM so you can look for that online. Ofc you'd also need to make sure that the new ram has the same DDR version and you'd need to check the speed of the ram to make sure the motherboard supports it. You can probably find those speeds in the bios.