Statement 1 : The equations of the straight lines joining the origin to the points of intersection of `x^2+y^2-4x-2y=4` and `x^2+y^2-2x-4y-4=0` is `x-y=0` . Statement 2 : `y+x=0` is the common chord of `x^2+y^2-4x-2y=4` and `x^2+y^2-2x-4y-4=0`