若x+y=2,x^2-y^2=10,求4x+6的值
已知:4x^2+y^2-4x-6y+10=0,求y/x-x/y的值
已知x*x-4xy+4y*y=0 求[2x(x+y)-y(x+y)]/(4x*x-4xy+y*y)的值?
X^2+y^2-2x+6y+10=0,求x+y的值
x^2+y^2+4x-6y+13=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
若x^2+y^2-8x-10y+41=0,求x/y+y/x的值
若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值
若x+4y=2求4x^x+6^2y的值.
若实数x y满足,4x^2-y^2-4x+6y+10=0,求x^2+y^2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2x-y分之x+y=2,求代数式4x-2y分之x+y-4x+4y分之2x-y的值
已知(2x-y)/(x+y)=2,求代数式(4x-2y)/(x+y)-(4x+4y)/(2x-y)的值.