OK. So having that number to the side, and not in the top-left is a huge difference. THANKS!
Edit: Where does the come from? I'm sorry, I'm a hands-on learner.
On the side means 8 times square root 2. On the top left means the 8th root of 2.
The square root of two can also be written as Similarly, the cube root of two is written as . Generally the mth root of x is written as . This is just the notation used.