The second one is the correct equation. The constant to the right should be the diameter squared, while the numbers inside the parentheses should be the opposite.
33 +4x = 513
4x = 480 (x = 480/4: x = 120)
Answer
Step 2 Divide each side by 4
(4^9)5 X 4^0
4^9 is 262,144 x 5 = 1,310,720
1,310,720 x 1 = 1,310,720
