tim x biet
7029+X=5000x2
NH
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tim x dua vao quan he uoc boi:tim so tu nhien x sao cho x-1 la uoc cua 12tim so tu nhien x sao cho 2x+1 la uoc cua 28tim so tu nhien x sao cho x+15 la boi cua x+3tim cac so nguyen x,y sao cho (x+1)(y-2)3tim so nguyen x sao cho(x+2).(y-1)2tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180tim so nguyen to x,y biet x+y12 va UCLL (x:y)5tim so tu nhien x,y biet x+y32 va UCLL (x:y)8tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100x150tim so x nho nhat khac 0b biet...
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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 X biet aaaa: X = a
tim X biet X x a = a0a0a0
a) \(aaaa:x=a\Rightarrow aaaa:a=x\Rightarrow x=1111\)
b) \(x\times a=a0a0a0\Rightarrow x=a0a0a0:a\Rightarrow x=101010\)
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choP=(1/(x-2)-x^2/(8-x^3)*(x^2+2x+4)/(x+2)0/1/(x^2-4) tim DKXD va rut gon b tim Min p c tim x nguyen de p chia het cho x^2+1
A = 2/ x-1 .tim dieu kien cua x de A la phan so . tim A khi x = 2 ; x = -3. tim dieu kien cua x de A la so nguyen ( A thuoc Z )
\(\frac{\sqrt{x}+1}{\sqrt{x}-2}+\frac{2\sqrt{x}}{\sqrt{x}+2}+\frac{2+5\sqrt{x}}{4-x}\)
a,rut gon
b,tim x de p duong
c,tim x de p = -5/2
d,tim x de p thuoc z
e,tim x de p >9/2
tim x de B= 2018-x/ 2017-x co GTLN. tim GTLN do
tim x nguyen biet /x-1/^2+(x-1)^2=2015./x-1/
tim x
giup dum
tim x biet x+34 la boi cua x+1 tim x biet 2x+1 la uoc cua x+82
tim x biet x+10 la boi cua x+1
tim x biet 2x+1 la uoc cua x+82
Bạn Nguyễn Đoan Hạnh cho mình bổ sung nhé
Ư(9)={+-1;+-3;+-9}
Nếu x+1=-1 => x=-2
Nếu x+1=-3 => x = -4
Nếu X+1=-9 => x = -10
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x+10 la boi cua x+1
suy ra (x+1)+9 la boi cua x+1
suy ra 9 la boi cua x+1
U(9)={1;3;9}
Neu x+1=1 thi x=0
Neu x+1=3 thi x=2
Neu x+1=9 thi x=8
Vay x thuoc {0;2;8}
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