It is a question that has too little information to answer.

factorising the first denominator
x²-2x-3 = x² -3x+x-3 = (x+1)(x-3)
(a) 
finding LCD
(b) LCD of (x-3)(x+1) and (x-3) is (x-3)(x+1)
(c)

(d)



Answer:
8^1 = 8
So, x has to be 1/4 to make the exponent 1, and to make it equal to 8.
Let me know if this helps!
Answer:
option E is the only right answer.
Step-by-step explanation:
parallel means that the lines do not intersect.
Answer: -1 and 4
Explanation: the others aren’t because they have variables in one and numbers in the other