Question 923787
The numerical square root of 50 = 7.07106
The square root of 50 can also be expressed as
5 square root 2 as square root of 50 = square root of 25 x 2
The square root of 25 = 5, so goes on the outside of the 
root sign, leaving the 2 under the root sign.
Hope this helps.
:-)