$499(1997^n+1)= x^2 + x$ co nghiem nguyen
Edited by Phạm Quang Toàn, 01-06-2011 - 06:30.
Edited by Phạm Quang Toàn, 01-06-2011 - 06:30.
tim tat ca cac so nguyen duong n sao cho phuong trinh
$ 499(1997^n+1)= x^2 + x $ co nghiem nguyen
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