Most laptop keyboards, you unscrew screws from the the bottom of the laptop in order to get the keyboard out. Sometimes you have to remove the top bezel on the top of the keyboard as well, which may be more screws, sometimes under the battery, or it's just clips. Some companies put little pictures next to the screws to let you know what screw is for what, but most don't.
Try to find a service manual or dissassembly guide through google to help you.