Help to solve and plot solution

Consider the ODE y; + 11713; : 93. (i) Let u : 3;\". Show that the ODE can be transformed to u' - 21311; : '2. (ii) Find the general solution y(;z:) to the original ODE. (iii) Show there is a singular solution of the form y5(:1:) = 0:1?\" for some constants m and C 34$ 0. (Note that this is not the equilibrium solution 3; : 0.)