-3
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Not 25.
To raise a number to a negative power, first you raise the number to the corresponding positive power. -5 squared = -5 x -5 = 25
THEN take the reciprocal. 1/25 or, multiplying top and bottom by 4, 4/100 or .04
5 to the power of -2
It is: 2^5 minus 5^2 = 7
5 to the power of 2 plus 15 to the power of 2 = 250
2^5 = 32 and 5^2 = 25
5 to the power of three times 5 to the power of 2 is equal to 5 to the power of 5. We know this because A^a times A^b equals A^(a+b). We know this by solving the problem manually. 5 to the power of 3 is equal to 5*5*5 and 5 to the power of 2 is equal to 5*5. when you multiply them, it becomes 5*5*5*5*5 which is equal to 5 to the power of 5.