作业帮x2+y2-6x-8y+25=0,求分式4y2-x2/4xy-x2-4y2的值
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/20 21:53:20
x)0Ү45е625yiG=&@
#}J =aMR> lȶ--Y XXBX(Qk:&` HP78@uO;
l @n s-]
x2+y2-6x-8y+25=0,求分式4y2-x2/4xy-x2-4y2的值
x2+y2-6x-8y+25=0,求分式4y2-x2/4xy-x2-4y2的值
x2+y2-6x-8y+25=0,求分式4y2-x2/4xy-x2-4y2的值
x^2+y^2-6x-8y+25=0
(x-3)^2+(y-4)^2=0
x=3,y=4
4y^2-x^2/4xy-x^2-4y^2=-9又3/16