The autonomous differential equation dx = x(x - 1)(x + 1) has a solution that is : dt a. increasing everywhere b. decreasing everywhere c. increasing if 0 1 One solution of the differential equation y" + y' = o is y = e-*. A second linearly independent solution is: a. y=c b. y = ex c. y= xex d. y= xe-x e. y= ex