I could guess the answer correctly by the approach mentioned above but I still don't understand why - "3|x2 - 4| must be greater than or equal to 0." (as it mentioned in the explanation) Explanation says: Since this equation contains two variables, we cannot determine the value of y. We ca...

Sorry, my bad. It is talking about "absolute value expression |x2 - 4| must be greater than or equal to 0" and not the value of (x2-4)

Dear Team, Recently took GMAT 610 [Q48,V27,IR6,AWA (expecting 5-5.5)] (I think I can definitely improve and realistically target 670-680 in another attempt but wanted to know the chances in current situation) Profile: - Indian with 71% in undergrad (Bachelor of Engineering-I.T.) - 9+ yrs workex in o...

Many thanks Jennifer!
I agree that the score is low and will definitely try to improve. The guide looks very helpful.