How to implement an IEvalStepListener to show steps on how to solve equations?

[OmidNejadabbasi]

How should implement the IEvalStepListener to show the steps on how to solve a (for example) polynomial equation of degree 2.

Can you provide a simple implementation for it so that I can implement cases of my need ?

Here is a simple 2-degree equation : Solve((x^2 - 4x == -4), x)

A desired output could be like :

{{ (x-2)^2 = 0, x}, {x->2}}

We can maybe even put messages like "Square factorization" to the steps.