若x^2-4x+y^2-10y+29=0,求x^2y^2+2x^3y^2+x^4y^2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^2-4x+y^2-10y+29=0,求x^2y^2+2x^3y^2+x^4y^2的值
已知2x-y/x+3y=2,求代数式4x-2y/x+3y减4x+12y/2x-y的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
已知X.x+y.y-4x+2y+5=0,求4X.X-12X Y+9Y.y的值
已知4x-2y=0,求x-y/3x+2y的值
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*
已知2x-y=10,求[(x²+y²)-(x-y)²+2y(x-y)]/4y
若x=-1/4,能否确定代数式(2x-y)(2x+y)+(2x-y)(y-4x)+2y(y-3x)的值?
若X=负四分之一,能否确定代数式(2X-Y)(2X+Y)+(2X-Y)(Y-4X)+2Y(Y-3X)的值?
若x^5+x^4y+x^4+x+y+1=0,且3x+2y=1,求x,y的值
若2x-y=0,求代数式[(x^2+y^2)-(x-y)^2+2y×(x-y)]÷4y的值