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Abstract We present here a new method to estimate the solution of a cubic equation with real and complex coefficients. Our method is based on a derived quadratic from the original cubic allowing a reliable evaluation of the roots through a few simple and fast steps without needing extended formulae or logarithms. This approach is suitable for engineering applications and scientific research. Mathematics Subject Classification (2010). 11D25, 12D10, 26C10, 30C15.
Othman et al. (Fri,) studied this question.