已知|2x-1|+(y+2)2=0,则(xy)2006=______.
已知|2x-1|+(y+2)2=0,则(xy)2006=______.
已知:(2x+3y-4)2+|x+3y-7|=0,则xy=______.
已知xy=3,x2+xy-2y2=2(x+2y),且x≠-2y,则x+y=______.
因式分解:(x+y)(x+y+2xy)+(xy+1)(xy-1)=______.
已知x+y=4,xy=2,则x2+y2+3xy=______.
已知x平方+y平方+2xy-2x-2y+1=0,则(x+y)^2010=______
已知点A(2,y)与点B(x,-3)关于y轴对称,则xy=______.
已知 x-3*根号(xy)-4y=0,则 [2x+3*根号(xy)-2y]/[3x-根号(xy)+y]=______
因式分解:(x+y-2xy)(x+y-2)+(1-xy)2=______.
分解因式(xy-1)2-(x+y-2xy)(2-x-y)=______.
已知x+y=-5,xy=3,试求代数式(x-y)2的值______.
已知正实数x、y满足x+2y=xy,则2x+y的最小值等于______.