Tim hai so nguyen duong x,y biet x/y = -21/-91 va UCLN(x,y) =5
tim x,y biet x.y=252 va UCLN(x,y)=2
cho 2so x;y biet x.y=abcabc UCLN(x;y) =abc
tim bcnn(x,y)
tim x,y biet x.y=abcabc UCLN(x,y)=abc
khi do BCNN(x,y)=?
tim x ,y thuoc z biet: (x-1)(x+y) =32
Tim x
a, tim cac so nguyen x,y sao cho y/3 - 1/x = 1/3
b,tim cac so a va b biet a - b =5 va UCLN (a,b)/BCNN (a,b) =1/6
Luu y a/b tua la a phan b
1 tim cac so nguyen x,y biet
x/8=-28/32
3/y=12/24
3/4=15/y
giup xu nha ti tick cho
tim x dua vao quan he uoc boi:
tim so tu nhien x sao cho x-1 la uoc cua 12
tim so tu nhien x sao cho 2x+1 la uoc cua 28
tim so tu nhien x sao cho x+15 la boi cua x+3
tim cac so nguyen x,y sao cho (x+1)(y-2)=3
tim so nguyen x sao cho(x+2).(y-1)=2
tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180
tim so nguyen to x,y biet x+y=12 va UCLL (x:y)=5
tim so tu nhien x,y biet x+y=32 va UCLL (x:y)=8
tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100<x<150
tim so x nho nhat khac 0b biet x chia het cho 24 va 30
40 chia het cho x . 56 chia het cho x va x>6
tim 2 so tu nhien x, y biet y/8 - x/8 = 1/8 va x<y