已知实数x,y满足方程组{x+xy+y=2+3倍根号2 {x2+y2=6 求(x+y+1)的绝对值
已知实数x,y满足方程组{x+xy+y=2+3倍根号2 {x2+y2=6 求(x+y+1)的绝对值
已知实数x,y满足方程组x+xy+y=2+3根号2和x2+y2=6.求|x+y+1|的值.
已知x2-3xy-4y2的绝对值+2倍根号x2+4xy+4y2-1=0 求3x+6y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2x2-7xy+3y2=0,求x:y
已知实数x、y满足关系式绝对值x+y-7绝对值+根号(xy-6)=0,求代数式(x+2y)/(y-x)的值
已知xy满足x2+y2-6x+2y+10=0,求立方根号x2-y2的值
已知非零实数x,y满足:x2+xy-2y2=0,求(x2+3y+y2)/(x2+y2)的值
已知实数x,y满足x2+xy+y2=3,则x2-xy+y2的最小值
已知实数x,y满足x2+2xy+3y2-8y+6=0,求x,y的取值范围
已知实数x,y满足x2+y2-2x+2y=6求x2+y2的最值