Các câu hỏi tương tự
Tim x, y thuoc Z, biet:
x.y+x+y+1=-3
tim x, y thuoc Z biet x+y -x.y = 7
Tim cac so nguyen x , y , z biet:
|x.y-10|+|y.z+15|+|zx+6|≤0
Trinh bay cach lam ho minh voi nhe
Cho A thuoc {0.1.2.3.4.5.6.7.8.9.10} biet A co hon 1 phan tu neu x,y,z thuoc A va x<y<z thi z =x.y tim A
Tim x,y biet (x+2).(3-x)>0 ......(cac ban trinh bay ro rang giup minh nha)
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 N, biet x.y+2.x+y-13=0
tim x ,y thuoc N biet x.y + 2.x +y-13=0
Tim x biet:
a, 25-y2=4(x-2016)2 (x , y thuoc Z)
b, \(2016^{\left|x^2-y\right|-8}\)\(+y^2-1=1\)
Trinh bay cach lam ho minh nhe