tim x,y,z thuoc z biet /x/+/y/+/z/=0
Tim x;y;z;biet
|x|+|y|+|z|=0
tim x, y, z biet:
(x-y^2+z)^2+(y-2)^2+(z+3)^2=0
tim x,y,z thuoc Z biet /2x-4/+/y+2/+/2x+3y-z/=0
Tim x, y thuoc Z biet : | x-2| + (x-y+1)^2 =0
tim x,y thuoc z biet (x-2).(y+12)<0
Tim x,y,z biet : ( x - 1/3 ) x ( y - 1/5 ) x ( z + 1/4 ) = 0 va x+y = y - 1 = z+1
giai giup minh nhe minh rat can den day
cho P =|x|.(y-1).Tim x,y thuoc Z biet P<0
tim x,y,z biet x-y=2011;y-z=-2011;z+x=2013
