Make 2^2/2-4 positive.

To make the expression 2^2/2 - 4 positive, we can simplify it step by step:

1. First, calculate the exponent: 2^2 = 4.
2. Next, divide 4 by 2: 4/2 = 2.
3. Finally, subtract 2 from the previous value: 2 - 4 = -2.

Since the result of the expression is -2, it is not positive.