Well you can try to take the AP exam without having to take the full class . Although , it would be much difficult to take an AP exam without the class . Although , there are AP study books on certain subjects that you can study from and try to pass that way . Or you can maybe look on online free study guides with the subject to help you study and learn the material. I would overall say that there can be a possibility in scoring high enough on the AP exams to get credit if you do study, understand , and the know the subject well. Although , I do recommend in taking the AP class.