已知xy的值满足｜x减1｜

已知整数x和y,满足x^+xy-2y^=7,求xy的值已知整数x和y,满足x^+xy-2y^=7,求xy的值已知整数x和y,满足x^+xy-2y^=7,求xy的值x^2+xy-2y^2=(x+2y)(

已知xy满足关系式(-x+6):(x-y)；（4x+y)=3；14：1,求x+y的值已知xy满足关系式(-x+6):(x-y)；（4x+y)=3；14：1,求x+y的值已知xy满足关系式(-x+6):

已知集合p=(1,xy.x)Q=(x的平方.xy.x)满足p=Q求x.y的值已知集合p=(1,xy.x)Q=(x的平方.xy.x)满足p=Q求x.y的值已知集合p=(1,xy.x)Q=(x的平方.xy

已知x,y是正整数,并且满足条件xy+x+y+1=71,x²y+xy²=880,求x²+y²的值已知x,y是正整数,并且满足条件xy+x+y+1=71,x

已知,xy满足方程组｛x+3y=53x+y=-1,求代数式x+y的值已知,xy满足方程组｛x+3y=53x+y=-1,求代数式x+y的值已知,xy满足方程组｛x+3y=53x+y=-1,求代数式x+y

已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y

已知,xy满足方程组｛x+3y=53x+y=-1,求代数式x-y的值已知,xy满足方程组｛x+3y=53x+y=-1,求代数式x-y的值已知,xy满足方程组｛x+3y=53x+y=-1,求代数式x-y

已知实数x,y满足(x2)+(y2)-xy+2x-y+1=0,求x,y的值已知实数x,y满足(x2)+(y2)-xy+2x-y+1=0,求x,y的值已知实数x,y满足(x2)+(y2)-xy+2x-y

已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y

已知实数x,y满足x平方+2xy-1=0,求x+y的取值范围.已知实数x,y满足x平方+2xy-1=0,求x+y的取值范围.已知实数x,y满足x平方+2xy-1=0,求x+y的取值范围.x^2+2xy

已知实数xy满足x/y=x-y,且y>1,则实数x的取值范围是已知实数xy满足x/y=x-y,且y>1,则实数x的取值范围是已知实数xy满足x/y=x-y,且y>1,则实数x的取值范围是x>=4x/y

已知x,y满足2x的2次方-2xy+y的2次方+2x+1=0,求(xy)的2006次方的值.已知x,y满足2x的2次方-2xy+y的2次方+2x+1=0,求(xy)的2006次方的值.已知x,y满足2

已知x,y满足2的x平方-2xy+y方+2x+1=0,求（xy）的2010次方的值已知x,y满足2的x平方-2xy+y方+2x+1=0,求（xy）的2010次方的值已知x,y满足2的x平方-2xy+y

.已知xy=8满足x²y-xy²-x+y=56,求x²+y²的值2.若x-3=y-2=z-1,求x²+y²+z已知xy=8满足x平方乘y减x

已知x,y满足"xy-x-y=10",求整数x,y的值已知x,y满足"xy-x-y=10",求整数x,y的值已知x,y满足"xy-x-y=10",求整数x,y的值xy-x-y=10（1-x）（1-y）

已知实数xy满足X的平方+y的平方=1,求y/x+2的取值范围已知实数xy满足X的平方+y的平方=1,求y/x+2的取值范围已知实数xy满足X的平方+y的平方=1,求y/x+2的取值范围X的平方+y的

已知x,y满足2x²-2xy+y²+2x+1=0,求（xy）2006次方的值已知x,y满足2x²-2xy+y²+2x+1=0,求（xy）2006次方的值已知x,

已知实数x,y满足xy+1=4x+y,若x,y为正实数,则xy的取值范围是?已知实数x,y满足xy+1=4x+y,若x,y为正实数,则xy的取值范围是?已知实数x,y满足xy+1=4x+y,若x,y为

已知实数xy满足x^2+y^2-xy+2x-y+1=0试求xy的值已知实数xy满足x^2+y^2-xy+2x-y+1=0试求xy的值已知实数xy满足x^2+y^2-xy+2x-y+1=0试求xy的值你

已知x,y满足2x^2-2xy+y^2+2x+1=0,求(xy)^2010的值.已知x,y满足2x^2-2xy+y^2+2x+1=0,求(xy)^2010的值.已知x,y满足2x^2-2xy+y^2+