Accessing the RAM in this computer is straightforward and requires minimal disassembly.
Remove the eight 4 mm Phillips screws securing the lower case to the MacBook.
Slightly lift the lower case near the vent opening.
Continue running your fingers between the lower and upper cases until the upper case pops off its retaining clips.
Use the flat end of a spudger to lift the battery connector up out of its socket on the logic board.
Release the tabs on each side of the chip by simultaneously pushing each tab away from the RAM.
After the RAM chip has popped up, pull it straight out of its socket.