tim cac so nguyen duong x;y;z thoa man \(3x^2-18y^2+2z^2+3y^2z^2-18x=27\)

tim cac so nguyen duong x,y,z thoa man x^2+y^3+z^4

so cac so nguyen x thoa man 15-|-2x+3|*|5+4x|=19 tim so cac so nguyen x giup minh nhe

!

tim cac so m,n,p thoa man : m+n+p+8=2canm-1 + 4cann-2 +6canp-3

tim cac so x,y,z thoa man :canx+cany-1 +canz-2 = 1/2(x+y+z)

tim cac so x,y,z thoa man :x+y+z+4=2canx-2 +4cany-3+6canz-5

Tim cac so nguyen x thoa man

A)/2x-2/=x+18.         :-) B)/2x-8/+4x=16

tong ba so x;y;z thoa man x/3=y/2;7x=5z va 4x-3y-2z=-24 la 

cach lam nha cac ban

tim cac so nguyen to  x y z thoa man 3(x+y+z)=xyz

tim cac so nguyen to x,y thoa man:(x -2) nhan (y-3)=-4

a)Tim tat ca cac so nguyen duong x, y , z thoa man: \(\frac{x+y\sqrt{2013}}{y+z\sqrt{2013}}\)la so huu ti, dong thoi x² + y²+ z² la so nguyen to.

b) Tim so tu nhien x, y thoa man: x(1+x+x²) = y(y-1).