Asked by Stacy
What is the difference between (-2)^2 and -2^2
Answers
Answered by
scott
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
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