[size=85]Enter the values of the [b]coefficients[/b] a, b, c and d of the [b]cubic[/b] 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. [br] The corresponding calculations in GeoGebra's CAS window are [i]preferably performed[/i] 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...[/size]