Các câu hỏi tương tự
co bao nhieu cap so (x;y) thoa man dang thuc 3xy+x-1= 1
xy+3x-2y=11 . hoi co bao nhieu cap x,y thoa man
co bao nhieu cap x;y thoa man x(x+y)=-45 va y(x+y)=5
co bao nhieu cap so (x;y) nguyen biet
3xy+x-y=1
\(^{x^2+y^2}\)chia hết cho 121 hoi co bao nhieu cap so duong x yko vuot quá 100 thoa man dk tren
ai nhanh mk tik
so cap (x,y) nguyen thoa man (y+1)(xy-1) =3
tim cap so nguyen (x,y) thoa man: x+y+xy=2
tim cap so nguyen (x,y) thoa man 8x+13y-xy
tim cac cap so nguyen x , y thoa man : 2 . ( xy - 3 ) = x