Các câu hỏi tương tự
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 x,y la so nguyen biet : 3x-2y-xy=1
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
tìm x,y nguyen biet x^2-2xy=5x-y+19
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
Tim so nguyen x va y biet : x2 - 2xy +y2 = 0
c1: Tap hop cac gia tri nguyen cua x thoa man \(\left(x+\frac{5}{4}\right)\left(x-\frac{19}{7}\right)\)<0
c2: Neu x,y la cac so nguyen thoa man 2xy+4y=6 thi y co the nhan nhung gia tri nam trong tap hop nao
c3: tim 3 so x,y,z biet x+y=8,x+z=10,y+z=12
C4: Gia tri cua x thoa man (x+3)^2=25 va x^3>0 la x=
cho M = -5x^2y . Tim cac cap so nguyen (x,y) de M =-160