a)=>[x-1]=7
x=7+1
x=8
[y+2]=7
y=7-2
y=5
b)[x-3]=9
x=12
[y-3]=9
y=12
x.y=-21
=>x=3;y=-7....
a)=>[x-1]=7
x=7+1
x=8
[y+2]=7
y=7-2
y=5
b)[x-3]=9
x=12
[y-3]=9
y=12
x.y=-21
=>x=3;y=-7....
Tim so nguyen x,y biet
a) (x+5) mu 2 + (2y - 8 ) mu 2 = 0
b)(x + 3).(2y - 1 ) = 5
1,tim cac so nguyen x,y biet: -2/x=y/3 va x<0<y
2, Tim cac so nguyen x,y biet:x-3/y-2=3/2 va x-y=4
tim so nguyen x , y thoa man : x - 2.x.y + 3.y = 1
tim cac so nguyen x,y sao cho: x.y= -7 va x < y
tim cac so nguyen x,y sao cho x.y=-5
tim so nguyen x, y thoa man : 3.x.y + x =2.y
tim so nguyen x, y thoa man : 3.x.y + x =2.y
tim cac cap so nguyen to x,y: x.y=2x+2y
1.Tim cac chu so x va y de so 1x8y2 chia het cho 36
2.tim cac gia tri nguyen cua n de phan so A=3.n+2/n-1 co gia tri la so nguyen
3.tim cac chu so x y thoa man
(x-2)^2.(x-3)^2=4
4.tim so tu nhien x biet
(x-5):3/100=20.x/100 +5