Question

When a particular non-zero integer is substracted from it's square, the result is neither negative nor positive. What is the integer?

Answer 1

If the result is neither negative nor positive, the simplest option is saying that 0 is neither negative nor positive.

For a number to be subtracted from it's square and equal 0, the only possible number is 1.

1 squared is 1, and 1-1=0.