Answer:
45
Step-by-step explanation:
I would go with D, it looks like it is the most linear out of the rest, Hope it helps:)
(a) * (a+1) = 420
a^2 + a = 420
a^2 + a - 420 = 0
(a+21)(a-20) = 0
a = -21 OR 20
The two integers can be -21 and -20, OR 20 and 21.
Answer:
Step-by-step explanation:
no x-intercept/zero
