Question

How to solve cubic equations by synthetic division?

Answer 1

The first time you encounter a cubic equation (which take the form ax3 + bx2 + cx + d = 0), it may seem more or less unsolvable. However, the method for solving cubics has actually existed for centuries! Discovered in the 1500s by Italian mathematicians Niccolò Tartaglia and Gerolamo Cardano, the method for solving cubics was one of the first formulas not known to the ancient Greeks and Romans. Solving cubics can be quite difficult, but with the right approach (and a good amount of foundational knowledge), even the trickiest cubics can be tamed


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