Answer:
-2
Step-by-step explanation:
Each term is being multiplied by -2.
9(-2) → -18
-18(-2) → 36
x + 7
1+7=8
2+7+9
so on
x²+7=43x
x²-43x+7=0
r≈3.95in
I think it is 1/25k if not im sorry
56%