If a² (a + 3b) = p and b² (3a + b)= q, what is (a + b)³ in terms of p and q

Evaluate 
(x + 1) (x - 2) (x + 3)

If a + b = 14, ab = 24, find a - b ?

If (a - b)² = 145, and a² + b² = 7, find ab? 

(4x + 5y)²

The value of p² + q² + r², if P + q + r = 36 and pq + qr + rp = 148 is ___________

[x² + x/y]² =

Simplify
(2x - 3)³ + (2x + 3)³

If 3a + 2b = 10, a = 14/9, find 27a³ + 8b³?

If a² + b² + c² = 29, and ab + bc + ca = 28, the value of (a + b + c)² is?