so cac cap (xy)nguyen thoa man :x>y va x/9=7/y
Tim cac cap so nguyen x,y thoa man
a) xy-5x+y=17
b) x.(y-2)=3 va x>y
Tim cac so nguyen x,y thoa man : xy+3x-y=8
bai 1 28(30-48)-30(28-38)
bai 2 :tim cac cap so nguyen (x:y)thoa man : y+3+x.y+3x=7
cho 2 so x;y la cac so nguyen sao cho :/x/ +/y/ = 2 so cap (x;y) thoa man la
so cac cap (x;y) tu nguyen thoa man : x/5 - 4/y = 1/3
a, co bao nhieu cap so nguyen ( x,y ) thoa man x + y=1
b. co bao nhieu cap so nguyen ( x,y ) thoa man x.2 + y =1
Cap so nguyen duong ( x,y ) thoa man |(x2 + 2).(y + 1)| = 9 la (x,y)=.....
(Nhap cac gia tri theo thu tu , cach nhau boi dau;)
cho x ; y la cac so nguyen to sao cho gia tri tuyet doi cua x cong gia tri tuyet doi cua y bang 5 so cap so nguyen (x;y) thoa man la