Các câu hỏi tương tự
tim x , y nguyen duong thoa man
1003x +2y = 2008
Tim x,y nguyen thoa man 1+can(x+y+3)=canx+can y
a)Tim cap (x,y) nguyen duong thoa man xy=3(y-x)
b)cho 2 so x,y >0 thoa man x+y = 1
Tim GTNN cua M=(x^2+1/y^2)(y^2+1/x^2)
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).
tim hai so nguyen duong x,y thoa man x3 +7x = y3 +7y
1/ Tim x, y nguyen duong thoa man: \(y=\sqrt[3]{18+\sqrt{x+100}}+\sqrt[3]{18-\sqrt{x+100}}\)
Tim tat ca cac cap so nguyen(x,y) thoa man:
10x + y = x2 + y2 +1
tim cac so nguyen thoa man dang thuc x3 - 4*x2-x*y+5*x+y+3=0
Tim cac so x, y la cac so nguyen thoa man: \(\frac{2}{x+y\sqrt{5}}-\frac{3}{x-y\sqrt{5}}=-9-20\sqrt{5}\)