tim x nguyen duong biet 1/x(x+3)+1/(x+3)(x+6)=3/8
Tim so nguyen x biet : -x/2+2x/3+x+1/4+2x+1/6=3/8
12x/6 + 4x/6 - 3x/6 = 3/8 - 1/4 - 1/6
13x/6 = (9 - 6 - 4)/24 = -1/24
--> x = -1/52
Tim cac so nguyen duong x;y biet: |x-2y+1|.|x+4y+3|=20
de ma suy ra 1 trong 2 ve la uoc cua 20
chi la uoc duong thoi vi cogia tri tuyet doi ma
tim cac so nguyen duong x;y biet |x-2y +1|.|x+4y+3| =20
Tim cac so nguyen duong x,y biet |x-2y+1|.|x+4y+3| = 20
tim cac so nguyen duong x,y biet |x-2y+1| |x+4y+3|=20
tim cac so xy nguyen duong biet /x-2y+1/*/x+4y+3/=20
1. tim cac cap so nguyen duong (x, y) sao cho:
2 x3 + xy = 11
2. tim cac cap so nguyen duong (x, y, z)sao cho:
x + y + z = x*y*z
3. tim x thuoc z, biet;
|x| = -2003
|x| = |-2003|
minh dang can gap lam. chieu mai phai nop rui
a)Tim so nguyen x va y biet :
5/x+y/4=1/8
b)Tim so nguyen x de A co gia tri la 1 so nguyen biet :
A=(căn x +1) /(căn x -3) (x lớn hơn hoặc bằng 0)
b: Để A là số nguyên thì \(\sqrt{x}+1⋮\sqrt{x}-3\)
\(\Leftrightarrow\sqrt{x}-3+4⋮\sqrt{x}-3\)
\(\Leftrightarrow\sqrt{x}-3\in\left\{1;-1;2;-2;4\right\}\)
hay \(x\in\left\{16;4;25;1;49\right\}\)
a) Duong bo tu thanh pho moi binh duong di vung tau dai 104km.tren mot ban do,khoang cach do dai khoang 10,4cm.tim ti le cua ban do
b) tim so nguyen x, biet -1/3<x/9<-1/6