Question 72
Let $a$, $b$, $c$ be positive real numbers such that $a + b + c = 3$. Find the minimum value of the expression
$$
A = \frac{2 - a^3}{a} + \frac{2 - b^3}{b} + \frac{2 - c^3}{c}
$$
$$
A = \frac{2 - a^3}{a} + \frac{2 - b^3}{b} + \frac{2 - c^3}{c}
$$