Learn how to add two functions together and then determine the domain

The video tutorial discusses the function F + g of X, focusing on determining the domain. It explains that F of X is 2X + sqrt(X) - 1 and highlights the absence of like terms. The tutorial emphasizes the importance of identifying domain restrictions, particularly when variables are under radicals, concluding that the domain is all numbers greater than or equal to zero.

How do you determine the domain of the function based on the radicand?

What is the final conclusion about the domain of the function?