Answer:
-3 is in the top left
0 is in the middle
-4 is in the middle row on the right
1 is on the top right
Explanation:
Each row adds to zero, the bottom row shows -1 -2 and 3, if you add these together you get zero, then you can substitute different numbers in the empty spaces to see if they give you 0. You could also add what you know is in the given squares and work out which of the options could work.