Answer: 
Step-by-step explanation:
1. By definition, you have if
, then 
2. Keeping this on mind, you must follow the proccedure shown below:
- You have that:

Where:

- Substitute values into
. Then, you obtain:
15w
the answer is 15 w.
add 9+1+5
5x+25 final answer is x=5
The maximum number of turning points in a cubic function is 2.
In this case,

The discriminant is

, which means the derivative has no real roots. This means there are no critical points and thus no turning points/relative extrema.
The answers X2 plus 4X -21This is because it’s possible