1/3+a=5/4
a=5/4-1/3
a=11/12
-5 Subtract 8 from -12 and divide -20 by 4 and get -5
Given:
The given polynomial is:

To find the roots of the given polynomial.
To find the roots we have to take 
So,

Formula
By quadratic formula, the root of the equation
is,
and 
Now,
Putting,
we get,
and 
and 
Hence,
The values of the roots of the given polynomial are
and
Hence, Option A and F are the correct answer.
Answer:
is the right answer and other are wrong