Let me ask you a question: does x^2>4 mean x>2 or x>-2? What does x>2 or x>-2 even mean?
x^2>4 --> |x|>2 --> x>2 or x<-2.
This conclusion is based on below logic.x^2=25
has TWO solutions, +5 and -5 so I thought x^2>4
would also have two solutions +2 & -2, this is how I got x>2
Could you please let me know why this is not valid ?
I am asking very basic question but I know only after getting my basics clear, I will be able to get good score.... Thanks for bearing with me and my stupid questions