Which statement is NOT TRUE?

1) for all x E Z: if x^(squared) - 5x + 6 = 0, then x > 1 and x < 4.

2) there exists an integer x such that x < 0 and x^(squared) + 4 = 0.

3) there exists an integer x E {10, 100, 1000} such that x^(squared) E {10, 100, 1000}.

4) for all integers x E {10, 100, 1000}, x^(squared) is an even number.

My answer is 3 because x squared is not 10, 100 and 1000. Am I right???