Answer:
The answer is:  "  "  .
 "  .
_____________________________________________
Step-by-step explanation:
______________________________________________
We are asked to convert "5 square root of a"  ;  into "exponential form".
Note that "5 square root of a" ;
              or;  " 5 root a " ; 
means:    " 5 times the {square root of the variable, "a" }; 
       or :    " 5 multiplied by the {square root of the variable, "a" }.
_______________________________________________
This can be written as:   "  " .
 " .
_______________________________________________
<u>Note the following property of exponents</u>:
![\sqrt[n]{a^m} = (\sqrt[n]{a})^m = a^m^n](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%5Em%7D%20%3D%20%28%5Csqrt%5Bn%5D%7Ba%7D%29%5Em%20%3D%20a%5Em%5En) .
 .
_____________________________________________
So;  to write:  " √a "  ;  <u> </u><em><u>as an exponent</u></em><u> </u> :
______________________________________________
<u>Note</u>:  
" ![\sqrt{a}  = \sqrt[2]{a} =   \sqrt[2]{a^1} = (\sqrt[2]{a})^1 =  a^\frac{1}{2}](https://tex.z-dn.net/?f=%5Csqrt%7Ba%7D%20%20%3D%20%5Csqrt%5B2%5D%7Ba%7D%20%3D%20%20%20%5Csqrt%5B2%5D%7Ba%5E1%7D%20%3D%20%28%5Csqrt%5B2%5D%7Ba%7D%29%5E1%20%3D%20%20a%5E%5Cfrac%7B1%7D%7B2%7D) " .
 " .
_______________________________________________
<u>So</u>:
"  "  ;
 "  ;
_______________________________________________
<u>And</u>:
________________________________________________
"  " .
  " .
________________________________________________
    →   The answer is:  "  " .
 " .
________________________________________________
Hope this helps!
    Best wishes in your academic endeavors
            — and within the "Brainly" community!
________________________________________________