Simply downloading and skimming it will not help you. Leithold requires active reading.
Louis Leithold once said that mathematics is not a spectator sport. His College Algebra forces you onto the field. Whether you find a legal PDF, borrow a physical copy, or buy a cheap used edition, the knowledge contained within those pages remains one of the most efficient routes from algebraic confusion to calculus readiness. College Algebra By Louis Leithold.pdf