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Question: Evaluate the expression -(-9)2.


A ) 162
B ) 81
C ) 18
D ) -81

Steps to derive

 [Convert the exponential form into product form.]
1 -(-9)2 = -[(-9) x (-9)]

 [Multiply the terms inside the grouping symbols.]
2 = -81

3 The value of -(-9)2 is -81.



Hence the right answer is Option D

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