I just ripped up the carpet on my second floor, it was old and smelled. Underneath there is plywood mostly but in some areas there is pre adhesive tiles. I ripped up one and it took a little plywood with it, and didn't come up cleanly. Can I lay carpet/laminate floors in top of them? Thank
Laminate with the proper pad would go right over it or carpet will also work.
If you meant peel and stick tiles you can use a heat gun to get them out.
If the plan is laminite of carpet I'd leave them in place. Reason being your going to have a sticky mess once there out that would all have to be cleaned off