I think the question should read x^2= kKdraghici wrote: If x^2= k, where x and k are integers, which of the following could be the value of k?
A) 3
B) 6
C) 9
D) 12
E) 15
This tells us that k is the square of an integer.
Some squares are: 0, 1, 4, 9, 16, 25, 36, etc.
So, 9 could be the value of k.
Answer = C
Cheers,
Brent
