If you're interested in exploring more resources, I can suggest some popular books and online materials that might be helpful:
Tackling 1000 problems builds the mental stamina required for long-form math competitions. Top Sources for 1000+ Mathematical Olympiad Problems PDF
Olympiad algebra moves far beyond solving standard quadratic equations. You must master:
Focusing on polynomial equations, advanced algebraic inequalities, functional equations, and sequences.
Assume the conclusion is true and deduce what must happen right before that final step. Simplify the Problem: Turn a problem with