My first assumption was x,2x,2(2x) - then I tested 0,0,0 and got a NO which disproved my first assumption... the answer is obvious after. Did anyone else test

My first assumption was x,2x,2(2x) - then I tested 0,0,0 and got a NO which disproved my first assumption... the answer is obvious after. Did anyone else test 0,0,0?