It seems like you are referring to navigating the Desmos calculator, particularly when working with square root functions. If you're entering an expression that involves a square root, such as \(\sqrt{x}\), and you want to continue entering more parts of the equation, you need to use the right arrow key to exit the square root function before continuing with other parts of your equation.
If you have any specific questions or need further assistance with Desmos or any other mathematical concepts, feel free to ask!