6
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
-8
167
-2 and 4; 1 and 1.
1012
1510
212
15
91
42
Find factors of 16 which add to 8: Factors of 16 are 1 & 16, 2 & 7 and 4 & 4: Only the last add to 8 so: (x + 4)(x + 4) or (x + 4)2
Factors of -8 are -1 & 8, -2 & 4, -4 & 2 and -8 & 1. Only -4 & 2 add to -2 so factors are (x + 2)(x - 4)