Question

What is the square route of x Times 3 ifx is equal to 5 cubed? Then triple the answer

Answer 1

if x = 5^3
then x = 125
then 3sqrt(125)= 3*5squrt(5)
= 15squrt(5)

triple that answer is 45sqrt(5)

is this what you want?
I simply translated your English into math