Answer:

Step-by-step explanation:
Given the rational expression:  , to express this in simplified form, we would need to apply the concept of partial fraction.
, to express this in simplified form, we would need to apply the concept of partial fraction.
Step 1: factorise the denominator 





Thus, we now have: 
Step 2: Apply the concept of Partial Fraction
Let, 
 =
 = 
Multiply both sides by (x - 1)(x - 4)
 =
 = 

Step 3:
Substituting x = 4 in 





Substituting x = 1 in 





Step 4: Plug in the values of A and B into the original equation in step 2

