Evaluate (-9)^2

Problem

(−9)2

Solution

1. Identify the base and the exponent in the expression. The base is −9 and the exponent is 2

2. Apply the definition of an exponent, which indicates that the base should be multiplied by itself the number of times specified by the exponent.

(−9)⋅(−9)

3. Multiply the two negative numbers. Since the product of two negative numbers is positive, the result is 81

9⋅9=81

Final Answer

(−9)2=81

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