Answer:
Option (d) is correct.
The correct factorization of the polynomial
is 
Step-by-step explanation:
Given : Polynomial 
We have to factorize the given polynomial
.
Consider the given equation 
Taking x common from each term, we have,

Rewrite 36 as
, we get,

Using Algebraic identity, 
We have,


Thus, The correct factorization of the polynomial
is 