You can put this solution on YOUR website! First type three open set braces { followed by the word sqrt(, then type in the number or variables you want to take the square root of, then close the parentheses, and end up with three closed set braces.
Here is an example:
, which of course is 5x.
If you put three set braces before and after an expression, it types it in equation format like this .
For a cube root, type three set braces, then root(3,25x^2), then closed three set braces: .