Answer:
The important thing is to include the parenthesis, which determines if -6 or 6 is squared.
Explanation:
Any number squared gives a positive result. In the case of:
(-6)^2 = 36
-6 is squared, therefore the result, 36, is positive. In the case of:
-6^2 = -36
6 is squared, its result, 36, is positive, but then is multiplied by -1, to get -36.