Can someone please help me understand this question? It is absolute Greek to me!

List L consists of the numbers 1, square root of 2, x, and x squared. The range of the numbers in list L is 4. Which is greater?

A. x
B. 2

Question

Can someone please help me understand this question? It is absolute Greek to me! 

List L consists of the numbers 1, square root of 2, x, and x squared. The range of the numbers in list L is 4. Which is greater?

A. x
B. 2

anonymous · Answer

greek to me too 
but maybe it means the "range" is the largest number minus the smallest one?

anonymous · Answer

so it could be $\{1,\sqrt{2},\sqrt{5},5\}$

anonymous · Answer

but i really really don't know, so i should be quiet

anonymous · Answer

satellite73, yes, sorry but I didn't know how to type the "square root" symbol ;)

anonymous · Answer

solve all distances

anonymous · Answer

$$|x²-1|=4 or|x²-x|=4or|x²-\sqrt{2}|=4or|x-1|=4or|x-\sqrt{2}|=4$$

anonymous · Answer

Is this your proposed answer, RaphaelFilgueiras? I don't understand. Can you please explain with a few words? (I am a word person, not numbers!)

anonymous · Answer

the range is the maximum distance,the distance between two numbers is the modulo of difference

anonymous · Answer

Ok, thank you!! :)