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- Power class problem in the first grade of mathematics
Power class problem in the first grade of mathematics
(1) because (x-3)? And | x+y | are both non-negative, and their sum is equal to 0, so they are all equal to 0.
That is, x = 3 and y =-3.
seeking =-27+27- 1/2009 = 1/2009
(2)B=A？ -2
Input 10, output 98
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