# Challenge 355:Square Root Search

What integer values could x stand for?

The expression

represents a positive integer.

Find the possible values of *x*, explaining carefully how you know you have found them all.

Skip to main content# Challenge 355:Square Root Search

$\sqrt{x-\sqrt{x+2}}$

What integer values could x stand for?

The expression

represents a positive integer.

Find the possible values of *x*, explaining carefully how you know you have found them all.