已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知实数xy,满足10x²-2xy+y²+6x+1=0,求x+y
已知实数xy满足x²﹢y²-xy+2x-y+1=0求xy
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满足条件|2x+3y+1|+(x+3y+5)²=0,求式子(-2xy)²×(-y
已知实数x y满足x×x+y×y-xy+2x-y+1=0 试求x y的值
已知实数x,y满足2x²+6xy+9y²-2x+1=0,试求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+1=0,试求x、y的值
已知实数x、y满足x²+y²-xy+2x-y+z=0,试求x、y的值
已知实数x、y满足(x+1)²+(|2y|-1)²=0,求xy的值
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.