tim tat ca so tu nhien x y thoa man x^2=y^2(x+y^4+2y^2)
tim tat ca cac so nguyen x,y thoa man x^3+x^2+2-2y=xy
tim cac cap so nguyen(x;y) thoa man; x^2+6xy=18 va x-2y=-7/2*y
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
Tim tat cac cac cap so nguyen x,y thoa man a) x^2+5xy+4y^2
b)xy-2x+3y-1
tim tat ca cac so nguyen x thoa man : (x+2014)^2=64.(x+2017)^3
tim so tu nhien x,y thoa man \(x^2-5x+7=3^y\)
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