Book:Murray R. Spiegel/Mathematical Handbook of Formulas and Tables/Chapter 9/Cubic Equation

Cubic Equation $x^3 + a_1 x^2 + a_2 x + a_3 = 0$

Cubic Equation

$9.3$: Solutions to Cubic Equation

$9.3.1$: Cardano's Formula

$9.3.2$: Discriminant of Polynomial: Cubic Equation

$9.3.3$: Cardano's Formula: Real Coefficients

$9.4$: Cardano's Formula: Trigonometric Form

$9.5$: Viète's Formula for Cubic Equation