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Solving general cubic in CAS

Enter the values of the coefficients a, b, c and d of the cubic polynomial using the input fields and find its roots. The roots z1, z2, z3(are indicated in red) are calculated directly in the GeoGebra window. The corresponding calculations in GeoGebra's CAS window are preferably performed in the desktop geogebra java version: in the Preferences CAS Timeout section, you can set the processing time in seconds from 5 to 60. In Geogebra online version, I did not find these settings...