Login to USATestprep and take a "Small Test". This will be a cumulative test over all the domains. It is only 13 questions, so take your time. Remember to retry missed questions or take a new test if you want to try for a higher grade.
Watch the video on solving quadratic equations using completing the square. For some of you, this was your favorite method. The video is long, so I would make sure you at least watch examples 1 (rational), 2 (irrational), and 5 (which shows how to solve one that has a leading coefficient). After the video, complete the assignment on Deltamath titled "Alg-Solve quadratic equations using completing the square".