A because you can have many different results
Answer: h=7
Step-by-step explanation:
By definition the function in vertex form is:

Where (h,k) is the vertex of the parabola.
You must group the terms that contain the same variable in the function:

Complete the square as following:

Now you must rewrite it as following:

Then:
h=7
Answer:
8 subtracted from the product of 9 and x
Hope this helps!
<span> 3a^3+8a-6
+4a^2-9a+11
=3a^3+4a^2-a+5
</span>