Solving Cubic Equations

LiveMath OnLine: Cubic Solver

While we may be familiar with the Quadratic formula, few people today know how to use the cubic formula. Work through this notebook to see why!

Did you know that mathematicians used to challenge other mathematicians to public displays of calculation and problem solving, in order to prove who was the greater (and so generate a higher income!) Solving cubic equations was a favourite challenge, since only the very best were able to perform the calculations involved.