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tìm x,y,z thỏa mãn
Tìm x,y,z thỏa mãn
a;$5x^2+5y^2+8xy+2x-2y+2=0$
b;$\sqrt{x-2008}+\sqrt{y-2009}+\sqrt{z-2010}+3012=\frac{1}{2}(x+y+z)$
Tìm x,y,z thỏa mãn
a;$5x^2+5y^2+8xy+2x-2y+2=0$
b;$\sqrt{x-2008}+\sqrt{y-2009}+\sqrt{z-2010}+3012=\frac{1}{2}(x+y+z)$
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