Depressed cubic equation: An important step to solve any cubic equation.

Posted on August 5, 2022 by Sumant Sumant

The equation missing the x^2 term is a depressed cubic equation. x^3+mx=n. Using (a-b)^3 one can get (a-b)^3+3ab(a-b)=a^3-b^3. All one needs after that is to eliminate a and b

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