So we actually do take on a maximum value when x is 3.528. On the other side, we see that over here we are concave upwards, concave upwards. Concave upwards, the graph will look something like this over here. And if the slope is zero where the graph looks like that, we see that that is a local minimum. That is a local minimum. And so we definitely don't want to do this. We would produce 472 and a half units if we were looking to minimize our profit, maximize our loss.