xx+yy-2x+4y+5=0求x,

来源：学生作业帮助网编辑：六六作业网时间：2025/02/01 22:59:07

x*x+y*y-2x+4y+5=0求x,x*x+y*y-2x+4y+5=0求x,x*x+y*y-2x+4y+5=0求x,X=1y=-2原式=(x-1)^2+(y+2)^2=0X=1Y=-4x^2+y^

x*x+y*y-2x+4y+5=0求x,
x*x+y*y-2x+4y+5=0求x,

x*x+y*y-2x+4y+5=0求x,
X=1 y=-2
原式=(x-1)^2+(y+2)^2=0

X=1Y=-4

x^2+y^2-2x+4y+5=0
(x-1)^2+(y+2)^2=0
解得：x=1 ，y=-2

若(x*x+y*y)(x*x+y*y)-4x*x*y*y=0,求代数式(x*x+5xy+y*y)/(x*x+2xy+y*y)的值已知:3x-5y=0,求x/y,x-y/y,x-y/x x*x+y*y-2x+4y+5=0求x, 已知X.x+y.y-4x+2y+5=0,求4X.X-12X Y+9Y.y的值已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值? 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) x*x+2x+y*y-4y+5=0 x= y= 已知X^2+Y^2-2X-4Y+5=0,求分式Y/X-X/Y的值已知x²+y²-2x-4y+5=0,求分式y/x-x/y的值. 已知x、y满足x²+y²+2x-4y+5=0,求x、y的值 x+y+2x+4y+5=0,求代数式x/y+y/x的值 x^2-x+y^2+2y+5/4=0 求x^-1+y^0 已知4x^2+y^2-4x+4y+5=0,求x,y 3x+4y-5=0 x^2+y^2=1求x.y 若2x-3y=0,求5x+4y/3x-2y 已知x²+4x+y-2y+5=0求x+2y 已知x²+y²-2x+4y+5=0,求x+y x的平方-4x+y的平方+2y+5=0,求x+y