Which of the following expressions is the general solution for y′+2xy=0y' + \frac{2}{x}y = 0y′+x2y=0?
y=C/x2y = C/x^2y=C/x2
y=Cx2y = Cx^2y=Cx2
y=C/xy = C/xy=C/x
y=Clnxy = C \ln xy=Clnx