Am I cooked for Cambridge Maths?

Agee with @nwar comments. Id also avoid watching step question walkthroughs if youve not tried the question (several times?). As an example of a step 1 question (the exam has been discontinued), but q1 2014 was a relatively simple (little/no a level content on) about squares, simple binomial, ... The examiners report expressed surprise about how badly it was attempted, as usually the q1s are partially to get you warmed up. Arguably it was closer to smc stuff, so primes, difference of two squares, binomial, ... Why not have a bash (several times?) at it without looking at solutions/examiners report? Then read a bit about babylonian multiplication/tables of squares etc and think how it relates to logs, .... So it could be argued that the question is 3,500 years old.
Why highlight it? The question is ~smc/elementary stuff and not really a level content. But it could be interview material and the algebra should be simple enough (core step) that even though the question is slightly unusual, youd be expected to do it. So as in the previous post, doing some harder maths stuff is important at this stage (as well as your a levels, step foundation, supercurriculars). Harder doesnt necessarily mean more advanced, rather harder questions even using pre a level stuff.