Cardan and Ferrari travelled to Bologna in 1543 and learnt from della Nave that it had been del Ferro, not Tartaglia, who had been the first to solve the cubic equation.
Kardan at Ferrari manlalakbay sa Bologna sa 1543 at learnt mula sa della gitnang bahagi na ito ay nai-del Ferro, hindi Tartaglia, na may been ang unang upang malutas ang kubiko equation.