Answer:
Step-by-step explanation:
This is more easily understood if you take out a common factor of -1
-1(x^2 + 15x + 56)
7*8 = 56
7 + 8 = 56
-1 (x +8)(x+7)
4
edge 2020
C. 0.5..................
No
If the speed rises then it will take you less time
If the speed decreases then it will take you more time