what is (7.21-3.13)4th power divided by 0.6-0.4?

To solve this equation, we need to perform a series of mathematical operations. Let's break it down step by step:

Step 1: Subtract 3.13 from 7.21.
7.21 - 3.13 = 4.08

Step 2: Take the result from Step 1, and raise it to the 4th power.
4.08^4 ≈ 228.9977832

Step 3: Determine the value of the expression 0.6 - 0.4.
0.6 - 0.4 = 0.2

Step 4: Divide the result from Step 2 by the value in Step 3.
228.9977832 ÷ 0.2 ≈ 1144.988916

Therefore, (7.21 - 3.13)^4 ÷ (0.6 - 0.4) is approximately equal to 1144.988916.