Các câu hỏi tương tự
Cho so nguyen to n co 2 chu so hang chuc la x, hang don vi la y. Biet M=n/x+y. Tim n de M=2. Tim n de M dat gia tri nho nhat
tim x la so nguyen biet : ( x^2 - 7).(x^2-49) < 0
tim x,y biet 5x^2 -2xy+ 2y^2=18 ; x,y la so nguyen
tim cac so nguyen x,y biet x^2-(y-3)x-2y-1=0
Tim so nguyen x,y biet:
(x+1)^2+(y-1)^2=0
Tim x,y la so nguyen
a) 2x-3y+5= xy
b) x mu 2 +2xy+2x+4y
B2 Tim x,y la so nguyen to
x mu 2 -2y mu 2 =1
B3 Tim so tu nhienx,y
7 .(x-2004) mu 2 = 23- y mu 2
Tim 3 so nguyen to lien tiep x,y,z (x<y<z) thoa man A = x^2 + y^2 + z^2 la so nguyen to
tim x,y la so nguyen biet : 3x-2y-xy=1
Cho f(x)=ax^2+bx+c. Biet f(0), f(1), f(2) la so nguyen. Chung minh f(x) luon nhan gia tri nguyen voi moi x nguyen