The answer is provided in exponential notation.  In Algebrator the exponential form may be coerced into a radical notation but not within doyourmath.com. 

The use of exponential notation is understandably a bit awkward, at least until one gets "used to it". It is normal in more advanced mathematics classes to avoid the radical symbol and use exponential notation because the rules for working with radicals are exponent-based, but allowing the user the choice of notation is something that will be incorporated as a user option but "not yet".