Các câu hỏi tương tự
29 tháng 12 2021 lúc 19:48
Tim x thuoc Z:
a, -8 ⋮ 2x + 1
b, -54 ⋮ 4x - 1
tim x thuoc z biet
(x-1)(x-3)=-5
(x+1)(x+4)=0
(x^2-4)(x^2-19)<0
tim x , y thuoc Z
|x+2|.|y-1|-4|y-1|=0
|x-2|+|(x-2).(y+5)|=0
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 thuoc Z
1/ x(x+3)=0
2/ (x-2)(5-x)=0
3/(x-1)(x2+1)=0
tim x thuoc Z biet :
(x-1)^2 =(x-3)^4
HELP ME:0!!
Tìm x Z:
a) −1+3−5+7−...+x=200; b) −4+6−8+...−x=−400
Tim x thuoc Z
1/ x(x+3)
2/ (x-2)(5-x)
3/(x-1)(x2+1)=0
tim x,y thuoc Z biet
|y|.|2x+3|=8
|2x+4|+|y-3|=0
|x-1|+|2y+7|=3
|x+5|+|2y+6| nho hon hoac bang 0