Hello everyone, another pratice exam question i'm having issues on. Which statement is equivalent to the following statement? It is not true in general that two real numbers must be equal if their squares are equal. Would i write an existance statement like There exists 2 real numbers, x and y, such that if x = y then x^2=y^2. But the statement is It is NOT true...so now would i take the negation of that existance statement and get... ~(There exists 2 real numbers, x and y, such that if x = y then x^2=y^2.) = There are 2 real numbers, x, and y, such that x = y and x^2 != y^2. But this isn't right, because the answer is the following: THere are two different real numbers that have the same square. I don't see how they came up with this. Any help would be great.