Which of the following is a first order non-linear ordinary differential equation?

W) y' + y = 0 by prime plus y equals zeroJ

X) y" - 2y' - 2 = 0 by double prime minus 2y squared minus 2 equals zeroJ

Y) y' - xy = 0 by prime minus xy equals zeroJ

Z) y' - 2y' - 2 = 0 by prime minus 2y squared minus two equals zeroJ
Z) y' - 2y' - 2 = 0