(5^1/4+3*(10^1/4)-15^1/4)*125^1/4
(5^1/4+3*(10^1/4)-15^1/4)*125^1/4,
The result of this expression is: 16.2577366603,
100,000^(1/4)=17.7827941004,
As you can see they don't agree. You may have made a mistake somewhere!.
