Answer:
3x - 9 - (6 / (x+4))
Step-by-step explanation:
3x - 9
|----------------------------------------
(x +4) | (3x^2 + 3x - 42 )
3x^2 + 12x
------------------------------
-9x - 42
-9x - 36
-----------------------------------
- 6
Answer: 3x - 9 - (6 / (x+4))
Both is the answer to the problem
Posting screenshot of my answer in the linked question in case it gets deleted.
<span>Perpendicular bisector is a<span> line which cuts a line segment into two equal parts at 90° </span>⇒
MN ⊥ BC
BM = CM</span>