25^1.5 = 25 5 = 125(0.25)^-0.5 = 1/(0.25^0.5) = 1/0.5 = 281^0.75 = 81 3/4 = 81 * 1.732 = 140.292
Therefore, the answer is 125 + 2 - 140.292 = -13.292.
25^1.5 = 25 5 = 125
(0.25)^-0.5 = 1/(0.25^0.5) = 1/0.5 = 2
81^0.75 = 81 3/4 = 81 * 1.732 = 140.292
Therefore, the answer is 125 + 2 - 140.292 = -13.292.