tim tat ca cac so tu nhien x,y thoa man x^2=y^2(x+y^4+2y^2)
tim tat ca cac so nguyen x,y thoa man x^3+x^2+2-2y=xy
tim so tu nhien x,y thoa man \(x^2-5x+7=3^y\)
tim cap so thuc (x,y) thoa man;(x+2y)2=(x+2).(y-1).
tim cac cap so nguyen(x;y) thoa man; x^2+6xy=18 va x-2y=-7/2*y
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
tim tat ca cac so nguyen x thoa man : (x+2014)^2=64.(x+2017)^3
