What is the difference between (-2)^2 and -2^2
hierarchy is ... parentheses , exponentiation , sign
(-2)^2 = -2 * -2 = 4
-2^2 = - 2 * 2 = - 4 ... multiplication (exponentiation) before subtraction
(-2)^2 = -2 * -2 = 4
-2^2 = - 2 * 2 = - 4 ... multiplication (exponentiation) before subtraction