So let ka be 1.8
times ten to negative five. You can look that up in a textbook. So we get 1.8
times ten to negative five gives you X times X divided by 0.02 minus X, that gives you X squared divided by 0.2 minus X. 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.