71 isn't a perfect square but the square root of 64 is close to it so basically you can say about 8
Step (1) is incorrect. To divide by a number means to multiply by the reciprocal. In step (1) they did not convert the polynomial into its reciprocal.
Answer:
The pattern form is 8,15,34,71 which follows the rule 
Step-by-step explanation:
Given : Rule 
To find : Create a number pattern that follows the rule. Use at least three terms in the pattern ?
Solution :
Rule 
Put n=1,


Put n=2,


Put n=3,


Put n=4,


The pattern form is 8,15,34,71 which follows the rule 
Whole numbers ? Common denominator ?