Abstract:
Let λ1,λ2∈{±1}. Using congruent theory in elementary number theory and combinational method, the integer solutions (x, y, n, λ1,λ2) of the equation (x3-λ1)/(x-λ1)=(yn-λ2)/(y-λ2) satisfying x>y>1, n>3 and 2n are discussed. It is proved that the equation has only the solutions (x, y, n, λ1, λ2)=(5, 2, 5, 1, 1) and (7, 2, 7,-1,-1) with x is a prime or a prime power.