Find all integral solutions of the equation .
My attempt:
The equation can be re-written as
By inspection (-1, 2), (-1, -2), (2, 7) and (2, -7) are solutions. Are these the only solutions?
Find all integral solutions of the equation .
My attempt:
The equation can be re-written as
By inspection (-1, 2), (-1, -2), (2, 7) and (2, -7) are solutions. Are these the only solutions?