We worked through the Friday sheet. These sheets are going to be challenging and can include material outside of the normal classwork. I have seen them before for students at RLS.
One important equation to recognize is the sum of perfect cubes and the difference of perfect cubes. One can be turned into the other easily with a little bit of algebraic manipulation. Probably by looking these up he will memorize them if they continue to pop up, which they likely might. And if you recognize what something is, you can often look it up if you include enough detail “difference of perfect cubes” in Google for example.
With graphing, knowing the basic shape of the graph in advance by looking at the equation can help, especially lines/parabolas at this point.
You often factor when simplifying algebraic equations.