若(x-y)^2+(y-10)^2+(10-x)^2≤0,求x-y的值
若x^2+y^2-8x-10y+41=0,求x/y+y/x的值
X^2+y^2-2x+6y+10=0,求x+y的值
已知x^2-2x+y^2+6y+10=0,求分式x-y/x+y的值
已知x^2+y^2-10x-12y+61=0,求x/y-y/x的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
若|x+y-1|+(x-y-2)²=0,求代数式(x+2y)(x-2y)-(2x-y)(-y-2x)的值.
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
y满足x-y+2≥0,x+y-4≥0,2x-y-5≤0 求X^2+Y^2-10Y+25的最小值
已知x^2-4x+y^2-10y+29=0,求x^2y^2+2x^3y^2+x^4y^2的值
x²-2x+y²+6y+10=0,求—9(x+y)²+(3x-2y)(2y+3x)的值
若x的平方+2x+y的平方-6y+10=0,求x,y的值
若x^2-2x+10+y^2+6y=0,求(2x+y)^2的值