Math Medics
S.o.s. Math: The "Cubic" Formula
This tutorial supplies a general formula (similar to the quadratic formula) to find the roots of a cubic polynomial.
Math Is Fun
Math Is Fun: Algebra
Through this collection of definitions, lessons, problem-solving steps and strategies, and example questions, you'll learn why completing an algebra problem is a lot like solving a puzzle. After viewing introductory material and basic...