Các câu hỏi tương tự
tim tat ca cac cap so nguyen x,y sao cho2xy+x-2y=4
tim cac cap so nguyen duong nguyen to cung nhau sao cho: (x+y)/(x^2+y^2)=7/25
Tim cac cap so nguyen (x;y) sao cho 2x - 5y + 5xy =14
Tim cac cap so nguyen (x;y) sao cho 2x - 5y + 5xy =14
tim cac cap so nguyen duong nguyen to cung nhau sao cho: (x+y)/(x^2+y^2)=7/25
mk can gap lam
Tim cac cap so nguyen (x,y) thoa man:x-y+2xy=3
tim cac cap so nguyen m , n thoa man : 2^m - 2^n =2048
tim cac cap so nguyen x , y thoa man : 2 . ( xy - 3 ) = x
tim tat ca cac cap so nguyen x,y thoa man 2^x+1.3^y=12^x