I recommend you retake the exam. Your GMAT score is self-reported on your application, so admissions teams will focus on your highest score. Your current score puts you near the bottom 10th percentile for the schools you are looking at, and although this does not mean you will not be accepted, it is not a preferable position to be in.
As a note, MBA.com offers 2 free official practice exams, which are very useful for test prep.
Conrad and the Stacy Blackman
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