Lift the MacBook and carefully rotate the display to a 90 degree angle with the upper case.

The hinges should not move in relation to the display, and should rotate out of the case slightly.

Keeping the display at a 90 degree angle with the case, move the display straight down while holding the case still, so that the hinges slide out the bottom of the case.

Alternatively, you can lay the keyboard face down over the edge of a solid, nonslip surface while gently lifting the screen hinges out of their sockets, one by one.