x^+2x+1+y^2-8y+16=0求y/x

x^+2x+1+y^2-8y+16=0求y/x 已知x^2-8x+y^2-y+16又1/4=0,求[(x+y)(x-y)-(x+y)^2-2y(x-3y)]÷4y的值 已知x^2+y^2-8x+12y+52=0 ,求1/2x-1/x-y(x-y/2x-x^2+y^2) 已知x^2+y^2-8x+12y+52=0 ,求1/2x-1/x-y(x-y/2x-x^2+y^2) x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值 已知X*X+Y*Y+6X-8Y+25=0 求（Y/X)+(X/Y)-2=? x^2+2x+y^2-8y+16=0,求y/x的值 设x>0,y>0,x+y=1,求8/x+2/y的最小值 x>0,y>0,x+y=1,求8/x+2/y的最小值? 已知x^2+y^2-16x-8y+25=0,求y/x-x/y的值 已知x求^2+y^2-6x-8y+25=0求1/x-y /x+y/x^4-y^4 x的2次方+2x+1+y的2次方-8y+16=0,求y/x 已知x^2+2x+1+y^2减8y+16=0,求x分之y的值. 若x^2+2x+1+y^2-8y+16=0,求y/x.十万火急! X的平方+2X+1+Y的平方-8Y+16=0求X分之Y的值 已知x²+2x+1+y²-8y+16=0,求y/x的值 x²+2x+1+y²-8y+16=0,求x分之y的值 x-2y+3=0 求x^2-(4y+1)x+4y^2+8y