Cardano's Formula/Also presented as

Cardano's Formula: Also presented as
Cardano's Formula can also be presented in the following form:

Let $P$ be the cubic equation:
 * $x^3 + a_2 x^2 + a_1 x + a_1 = 0$

Then $P$ has solutions:

where:

where:

Proof
From the main presentation of Cardano's Formula, we have that:

Hence setting $a \gets 1$, $b \gets a_2$, $c \gets a_1$ and $d \gets a_0$:

after simplification.