General

[quote=Obscene]sqrt(30-x)=x
x^+x-30=0
x=-6 or x=5[/quote]

Damn that actually makes sense

sqrt(30-x)=x
x^+x-30=0
x=-6 or x=5

I would assume factors but I can't think of any perfect squares that're divisors of 30

1,4,9,16,25.....

brb getting pencil/paper

[quote=ulti25]Oh, infinite nested radicals would make more sense to ask about.[/quote]

you are a confused child eh

[quote=Zyanid]http://www.wolframalpha.com/input/?i=sqrt%2830-sqrt%2830-sqrt%2830-sqrt%2830-sqrt%2830-sqrt%2830-sqrt%2830%29%29%29%29%29%29%29[/quote]

Oh, infinite nested radicals would make more sense to ask about.

Do you know how to do it with no calculator?

[quote=Zyanid]5.
They are confused.[/quote]

lol yeah ik, wanna explain it to the kid above you ?

Assuming the "...etc " is meant to say that the sum is an infinite sum, then the expression is simply the form:

Σ k where k is a constant which isn't 0, and since the limit of the series as its terms expand infinitely doesn't tend to 0, the series must diverge.

You're either wrong or I'm misinterpreting what you're asking and you should be more clear.

So far nobody got it

The sum diverges.

(In other words, -∞)