Question

If n is a natural number, then 9²ⁿ – 4²ⁿ is always divisible by
A. 5
B. 13
C. both 5 and 13
D. None of these

Answer 1

Answer:

A is the answer is the of question

Answer 2

(a+b)(a-b)=a square - b square

9square - 4 square = (9+4)(9-4)

(9+4)=13

(9-4)=5

so answer is C.

hope it will help you