Tim x,y: \(x^2-y^2+2x-4y-10=0\) voi x,y nguyen duong
1.Tim cac cap so nguyen x,y sao cho x+y=2xy
2.Tim GTNN A = x2+3(x-1)2
Cho x,y,z la cac so nguyen duong thoa man 1/x + 1/y + 1/z = 2015.
Tim GTLN cua bieu thuc P=x+y/x^2+y^2 + y+z/y^2+z^2 + z+x/z^2+x^2
giai ho minh voi minh can gap lam ai tra loi minh tich cho
1 tim cac so nguyen x thoa man 1 trong cac dieu kien sau
a) 2x+1 la scp
b) 4x=1 la scp
c)8x+1 la scp
2 tim nguyen tu nhien cua phuong trinh x^2-y^2=y+1
tìm xy nguyen biet (x+y-2)^2+(y+3)^2=0 tim xy thoa man x^2-6x+10=1/|x-3|+1
x2(y2-5)=y(y-x)
Tim x,y nguyen
xy-x+2(y-1)=13
tim cap so nguyen x,y
Tim x,y nguyen thoa man:
X^4 + y + 4 = y^2 - x^2
Tim x,y nguyen thoa man:x^4+y+4=y^2-x^2
