Can anyone help me with this the last answer choice is wrong

Answer:
It's the 2nd one
Step-by-step explanation:
Answer:
Step-by-step explanation:
for all x>6
x-6>0
[tex]\frac{6x-x^2}{x^2-4x-12} \\=\frac{-x(x-6)}{x^2-6x+2x-12} \\=\frac{-x(x-6)}{x(x-6)+2(x-6)} \\=\frac{-x(x-6)}{(x-6)(x+2)} \\=\frac{-x}{x+2} \\by~dividing~by~x-6[/tex]