Yes you are correct, GCF of both terms is x, so you can factor x out.
3x - x² ⇒ x(3 - x)
Answer:

Step-by-step explanation:

The radical symbol when used for a square root means the non-negative square root. You cannot state that sqrt(x^2) = x because x may be negative. That is why you need use the absolute value symbol.
Answer:
I think the option B suits the most
Step-by-step explanation:
This may be wrong I cant realy tell from the text
midpoint is though any two different points
bisector is if two line intersect