已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值

来源：学生作业帮助网 编辑：六六作业网 时间：2025/01/24 14:40:06
已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值5x^2-6xy+2

已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值
已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值

已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值
5x^2-6xy+2y^2-4x+2y+1=0
(3x-y)^2-4x^2-4x-1+y^2+2y+1=-1
3(x-y)^2+1+(y+1)^2=(2x+1)^2
x=-1
3(1+y)^2+(y+1)^2=0
y=-1
方程解x=-1,y=-1

参看http://zhidao.baidu.com/question/222885433.html

已知x2+4y2+x2y2+1=6xy,则(x4-y4)/(2x2+xy-y2)*(2x-y)/(xy-y2)/(x2+y2/y)2= 已知x2+y2+4x-2y+5=0,求x2+2xy+y2值 2x2+xy-y2-4x+5y-6 因式分解 已知X2+Y2+8X+6Y+25=0 求代数式X2++XY+4Y2分之X2-4Y2 减X+2Y分之X的值 已知x/y+y/x=2,求(x2+xy+y2)/(x2-4xy+y2)的值 x2-2xy+y2=4 x2+y2-x-y=6 解不等式x2-2xy+y2=4 x2+y2-x-y=6 解不等式 已知x2+4y2+x2y2-6xy+1=0,求 x4-y4/2x-y 乘 2xy-y2/xy-y2 除以（x2+y2/xy）2乘1/x+y的值 已知5x2-6xy+2y2-4x+2y+1=0,求x、y的值 已知X2-2x+y2+6y+10=0,求（x2-2xy）/(xy+y2)的值 已知x/y=3/5,求 (x2-xy+2y2)/(x2+2xy-y2)的值 4x2-y2/x2-2xy+y2 +(2x-y)/2x2-2xy 计算(x+y/x-y + 4xy/y2-x2)(x2-9y2)/（x2+2xy-3y2） 已知x(x-1)-(x2-y)=-2求x2+y2-4xy的值 因式分解 2x2+xy-y2-4x+5y-6 x2-y2+a2-b2+2ax+2by 3x2+5xy-2y2+x+9y-4 b4-2b2-82x2+xy-y2-4x+5y-6x2-y2+a2-b2+2ax+2by3x2+5xy-2y2+x+9y-4b4-2b2-8 已知2+4y2-4x+4y+5=0,求x四次方-y的四次方/xy乘以2x2-xy/xy-y2除以(y分之x2+y2)2 已知x+y=4,xy=2,求x2+y2+3xy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：x2-y2=16,x+y=2,求：3x-3y/y2-x2+x2-2xy+y2/x2-y2-x2-x-6/x+2除以(x+y)