The number of zeroes of a polynomial is determined by the number of times it intersects the x-axis. Here, the polynomial intersects the x-axis at two points, which means it has 2 zeroes.
If the sum of two roots of \( x^3 + px^2 + qx - 5 = 0 \) is equal to its third root, then \( p(q^2 - 4q) = \) ?