:n:Clear(x);
:n:PrettyPrinter("PrettyForm");
:iel:True
Given x^2 - 4 = 0, what is x?

:
:h:x:=
:iel:True
Check answer: press enter on this field.
:
x^2-4;
:iel:True
The above answer should be zero.

If you found the right answer, please press submit. This will
bring you back to the index if you had the anwer right.

:
:il:if(x^2-4 = 0)Notepad(FindFile("index")) else Verify(x^2-4,0);
Submit
