Answer:
-1ab^2 + 5b + 8
Step-by-step explanation:
3a^2+9ab+5-4a^2-4ab+3
3a^2-4ab^2=-1ab^2
9ab-4ab=5ab
5+3=8
-1ab^2+5ab+8
3a²+9ab+5-(4a²-4ab+3)=3a²+9ab+5-4a²+4ab-3=-a²+13ab+2
Midpoint: (4,-3)
(4 +4)/2 = 4
(-7+1)/2 = - 3
It is A on edge
aint happy yet
