若实数x 、y满足根号下5x-1+绝对值的y+5然后等于0,则根号下xy =
若实数x 、y满足根号下5x-1+绝对值的y+5然后等于0,则根号下xy =
已知x、y满足根号下4x-5y+根号下x-y-1=0,则根号下xy-根号下x/y
若实数x,y满足根号下(x+2)加根号下(y-根号下3)的平方=0,则xy的值是()
若根号下5-x-y与3x-2y+1的绝对值互为相反数,则根号下xy
若实数xy满足根号下x+1+(y-5)²则xy的次方值为?
已知实数x,y满足根号下2x+y-3+(X-2Y-4)的绝对值=0,求x的平方+立方根y-5的值
若实数x,y满足根号下x+2+(y-根号下3)平方=0,则xy的值是?
已知xy都是实数,且y=根号下x-5+根号下5-x+1
已知正实数x y满足x-根号xy-2y=0求 x+3根号xy+2y/2x-2根号下xy-y
已知实数x,y满足x-5的绝对值+根号下y-4=0,求代数式(x-y)的2006次方的值
已知实数xy满足x的平方+6x+(根号下x-y+1)+9=0
若x,y满足根号下4x-5y+根号下x-y-1 等于零,求根号下xy-根号下x╱y的值?