Các câu hỏi tương tự
tim x thuoc Z thoa man : (x^2 - 20)(x^2-15)(x^2 - 10)(x^2 - 5 )<0
(4x+3) chia het cho (x-2)
Tim x thuoc Z thoa man
cac ban oi giup minh voi
1.tim a,b thuoc Z,biet:a.(2b-3)=-6
2.cho x,y thuoc Z thoa man x mu 2 +y mu 2 chia het cho 3.chung to x va y chia het cho 3.
Tim x,y thuoc Z thoa:
x2 + (y-3)2 = 0
tinh tong gia tri cua x
x thuoc Z thoa man -3<\x\<1
Tim cac so nguyen x, y, z thoa man x/y +y/z+z/x =y/x+/y+x/z=x+y+z=3
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 cac so nguyen duong x,y,z thoa man x^2+y^3+z^4
tim x thuoc Z de (x^3+5)(x^3+10)(x^3+30)<0