It is: -6 and -6
4 and 9
21
-20
23
0
72, 108, 144, 180, 216, 252, 288, 324, 360!
-40
164
-18 + -18 = -36 -18 x -18 = 324 The two numbers are both -18.
-27
The factor pairs of 36 are (36, 1) (18, 2) (12, 3) (9, 4) (6, 6) None of them add up to 9. If that was -36, you could use 12 and -3