Now we bring this guy over on this side, and we get 1.8 times ten to negative five multiplied by 0.2 minus X gives you X squared. Now distribute, and we get 1.8 times ten to negative five multiplied by 0.2 minus this guy multiplied by X gives you 1.8
times ten to negative five. X equals X squared. Now we bring everything to one side, and we equate it to zero. So we want a positive X squared, because it's easier to work with. So we bring these guys over on this side.