Find the solution of Equation 5.1.4 as a special case of the logistic equation and compare with

Question:

Find the solution of Equation 5.1.4 as a special case of the logistic equation and compare with the solution in Equation 5.1.6.
Our model of selection (Equation 5.1.4) looks much like the logistic equation studied in Example 5.4.7, but can be extended to be frequency-dependent when the fitness of one or both types depends on how common it is.