8\2a-a^2-4\a при a = -8

Question

8\2a-a^2-4\a при a = -8

Answer 1

8/(2*(-8)-(-8)^2-4/(-8) = 8/(-16-64)+1/2 = -8/80+1/2 = -1/10+1/2 = 4/10 = 2/5