i need to know how to do (4m -3power n5power)0 / mn

To solve the expression (4m - 3^n^5)^0 / mn, let's break it down step by step:

Step 1: Simplify the expression inside the parentheses, (4m - 3^n^5).
- In this expression, the exponent 5 applies to the entire expression 3^n. So, raise 3 to the power of n^5.
- We are left with (4m - 3^(n^5)) inside the parentheses.

Step 2: Simplify the exponent.
- The expression (n^5) means n raised to the power of 5.

Step 3: Apply the exponent of 0.
- Any non-zero number raised to the power of 0 is equal to 1. Therefore, (4m - 3^(n^5))^0 = 1.

Step 4: Simplify further.
- Now we have 1 / mn remaining.

Therefore, the final result of the expression (4m - 3^n^5)^0 / mn is 1 / mn.