How would I solve the problem

What is the square root of 7 - the square root of 7 + the square root of 7 - the square root of 7 + ...

But as one radical, not just adding and subtracting seperate ones over and over.

you got it right that (your subject title) has to be treated as a radical.

Obviously it can't be an integar. [I beleive you can do a better job than I to define an integer] Plus it is to be treated as a single concurring term. (think of it as a variable z if that sounds eazy)

Now, all that is left to it is to solve the Statisitical problem
and find the sum by applying hte relevant formula in your text / given to you by your teacher

Hope you understand,
Pin~Jinx / anarchist is back, I guess..