Answer:

Step-by-step explanation:
Using exponential rules, this simplifies to
.
Answer to the problem:
D
Basically the -8 shows you the y value that the vertex has !! You can also use desmos to visualize
Answer:
11x^2+2x+9
Step-by-step explanation:
2+(2+6)⋅x^2+2x+3x^2+7
2+(8)⋅x^2+2x+3x^2+7
2+8x^2+2x+3x^2+7
9+8x^2+2x+3x^2
9+8x^2+2x+3x^2
11x^2+2x+9
Answer:
2^9/2^3
=64.
I think it will help you.