Solving linear, quadratic, absolute value, and polynomial equations, alongside rigorous interval notation for inequalities.

Some universities have open libraries or textbook lending programs that you can utilize.

: A listing exists for a file called "College algebra (IA cu31924031219029).pdf". This appears to be a scanned version of an old library book. While these platforms are generally reputable, the content's copyright status may be murky, as it could be a scan of a book still under copyright.

: You can borrow digitized copies of the original editions, such as the 1980 Macmillan Edition or the 1989 Addison-Wesley College Algebra and Trigonometry Edition .

If you are working through Leithold's material or an equivalent rigorous textbook, adapt your study habits to match the depth of the content: