Question 52141
SQRT OF (A*A)(A*A)(A*A)(A*A)(A*A)(A*A)(A*A)(A*A) OR A^16
TAKING THE SQUARE ROOT OF EACH A*A WE GET A^8 

ANOTHER WAY TO SOLVE THIS IS TO USE A^16(1/2) WHERE THE (1/2), AS A POWER, IS THE SAME AS SQRT.
 
SQRTA^16=A^8