Solving Exponential Equations, Rationalizing Denominators, etc.

The title suggests what we learned in class today, I'm not writing it out again. It all looked so scary when the questions popped up on the screen, but it did not take me long to realize what was going on. A suggestion to myself: I learn more during the notes when my laptop is CLOSED!!! It actually looks pretty simple. I am feeling more comfortable with solving normal equations now. I really do not like linear equations though. Rationalizing denominators looks simple. I don't think it should be too difficult.