Suppose α, β, γ are roots of the equation:

x3 + 3x2 – 24x + 1 = 0

Find the value of ∛α + ∛β + ∛γ

Suppose:

ax + by = 5 ax2 + by2 = 10 ax3 + by3 = 50 ax4 + by4 = 130

Calculate the value of:

13(x + y – xy) – 120(a + b) = ?