YZ ║ XT
RS ║ XZ
XY ║ TS
I am not a professional, I am simply using prior knowledge!
Note- It would mean the world to me if you could mark me brainliest!
Answer:

Step-by-step explanation:

Hope this helps!
F(x) = x (x^3 - x^2 + x + 1)
Answer: C
<u>Step-by-step explanation:</u>
Degree of 5 means there are 5 roots.
If 3 roots are real, then there are 2 remaining - which must be imaginary.
I'm sorry that it's past 11pm, but if it still helps, the answer is 204/-576 which simplifies to 51/-144