Các câu hỏi tương tự
1 )Tim x, y thuoc Z
x + y = x.y
2) Tim x thuoc Z
(x + 1)+(x+3)+(x+5)+...+(x+99)=0(x-3)+(x-2)+(x-1)+...+10+11=11-12(x-5)+7(3-x)=530(x+2)-6(x-5)-24x=100
tim x,y thuoc z biet (x-2).(y+12)<0
4, tim x,y thuoc z
|y-42|+|12-y|=0
|x+5|+(y-3)^2=0
(x^2-16)^2+|y-4|<0
tim x thuoc Z thoa man : (x+3)(x-5)<0
tim x thuoc z,biet
(x-5)^2=0
tim x thuoc z
(x+3)(x-5) < 0
tim x thuoc Z de (x^3+5)(x^3+10)(x^3+30)<0
tim x thuoc Z
(x^2 - 49). (5x + 125) . (I3x-3I - 12) = 0
|x-5| . [x+2]>0
tim x thuoc z