Course 00 · Foundations
The essential math foundation — completely free.
Overview
A structured refresher covering the most important pre-algebra and early algebra concepts. No account required, no commitment. Perfect for students who want to fill gaps before starting a new course or need a quick review before an exam.
Try a sample problem
No login needed. Solve the problem below to get a feel for what we cover.
Simplify: (x² - 4) ÷ (x - 2)
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