Các câu hỏi tương tự
tim cac cap so nguyen duong (x,y) thoa man phương trình 6x2 + 5y2 = 74
Tim cac cap so (x,y) duong thoa man (x-y)^3=(x-y-6)^2
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 cac so nguyen duong thoa man: 1/x+1/y=2/3
Cho x,y,z la cac so nguyen duong thoa man 1/x + 1/y + 1/z = 2015.
Tim GTLN cua bieu thuc P=x+y/x^2+y^2 + y+z/y^2+z^2 + z+x/z^2+x^2
tim cap so thuc (x,y) thoa man;(x+2y)2=(x+2).(y-1).