Lodovico Ferrari
The life of Lodovico Ferrari - The Poisoned Prodigy Behind the Quartic Equation
Quartic Equation
He discovered the general solution for quartic equations.
\[ ax^4 + bx^3 + cx^2 + dx + e = 0 \]
Sources: https://mathshistory.st-andrews.ac.uk/Biographies/Ferrari/
