Question

Let S be the set of all ordered pairs (x, y) of positive integers satisfying the condition
x2 – y2 = 12345678. Then

(A) S is an infinite set
(B) S is the empty set
(C) S has exactly one element
(D) S is a finite set and has at least two elements.

Answer 1

Answer:

I think option D will be answer.

Thank you! !