Các câu hỏi tương tự
tim x,y biet 5x^2 -2xy+ 2y^2=18 ; x,y la so nguyen
Tim x,y la so nguyen
a) 2x-3y+5= xy
b) x mu 2 +2xy+2x+4y
B2 Tim x,y la so nguyen to
x mu 2 -2y mu 2 =1
B3 Tim so tu nhienx,y
7 .(x-2004) mu 2 = 23- y mu 2
tim cac so nguyen x,y biet x^2-(y-3)x-2y-1=0
tim x ,y la so nguyen to biet : x^2 - 6y^2 -1 =0
tim cac so nguyen x, y thoa man x>y>1 va 2x + 2y + 1 chia het cho xy
Cho so nguyen to n co 2 chu so hang chuc la x, hang don vi la y. Biet M=n/x+y. Tim n de M=2. Tim n de M dat gia tri nho nhat
xy+3x-2y=11 co bao nhieu cap so nguyen x;y
cho x,y,z la cac so huu ti duong thoa man x+1/yz y +1/xz z+1/xy la cac so nguyen tim gia tri lon nhat cua bieu thuc A=x+y^2+z^3
tim x thuoc Q biet x la so nguyen lon nhat duoc viet =3chu so 1