12,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1.
12,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1.
12,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1.
12,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1,
-1, -1, -1, -1.
248
15
14
71
24
248
15
-8 and +7
Well first think this... There's going to be a negative and a positive factor. (+)*(-)=(-) We know that the positive is going to be bigger because the 12 is not negative. The only factors that make 8 are 2*4=8 and 1*8=8. So it isn't possible to multiply -8 and add to 12.
1
6 and 2
14
They are -2 and -4
22
A negative and a positive number will multiply to a negative number. Other than that, -9 and -8 will satisfy your conditions.
57
71