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Các câu hỏi tương tự
tim x thuoc Z thoa man : (x+3)(x-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.
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 thoa:
x2 + (y-3)2 = 0
tim x thuoc z
(x3+5)(x2+10)(x2+15)(x3+30)
tim x nguyen thoa man 2.x/5=4/10
tim x thuoc Z biet |x-2| - 5(x-4) = 20 - 5x
Tim x thuoc Z
1/ x(x+3)=0
2/ (x-2)(5-x)=0
3/(x-1)(x2+1)=0