This question has been migrated to Mathematics SE (MSE) a few minutes ago. I find it embarrassing since the question is clearly ill-posed both from the mathematical point of view (how the relation between $x, v$, and $a$ follows from the definition of velocity and acceleration?) and from the physical point of view (dimensional inconsistency). I voted for closing because the question needs clarification. However, my closing vote was the second. Before me, it was selected migration to MSE.
I do not think the reputation of our community in MSE will increase after such a migration. Even worse, I do not see a trace of my closing vote being different from the migration solution.
I would suggest that people in a hurry for closing questions at least would spend a few minutes to understand the content of the question instead of sticking to the title only.