If x is an integer, what is the value of x?
(1) |23x| is a prime number
(2) 2*\sqrt{x^2} is a prime number
M04-07
(1) |23x| is a prime number
(2) 2*\sqrt{x^2} is a prime number
M04-07
[Reveal] Spoiler:
Now, I get why statement 1 is not sufficient (x could be 1 or -1). But the OA says that in statement 2, x could still be 1 or -1. Is it not the rule that the square root of a number only yields a positive number. Shouldn't x be here. Help.