Các câu hỏi tương tự
tim tat ca cac so nguyen x,y thoa man x^3+x^2+2-2y=xy
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 x,y thoa man
x^2+y^2=3-xy
cho x,y thuoc R khac 0 thoa man 2x^2 + y^2/4 +1/x^2 = 4. tim gtnn gtln cua A= 2008+xy
1. tich cac gia tri x thoa man \(x^2-\frac{1}{10}x-\frac{1}{5}=0\)
2.phan nguyen cua x biet x =8,295
3.tich x.y biet x+y=-0.57 va 2x=-3y
Cho x, y la hai so thoa man 2x^2 + 1/x^2 +y^2/4 =4. Tim Max A= xy
tim x y z thoa man x2+y2+z2-xy-3y-2z+4=0