If x + y + z = 9  &  xy + yz + zx = 23,
then the value of (x3 + y3 + z3 - 3xyz) is :

A. 108

If (x - 2) is a factor of (x2 + 3qx - 2q), then the value of q is :

D. -1

What is the result of factoring the polynomial x^2 - 5x + 6?

A. (X - 2)(X - 3)

Using the Remainder Theorem, what is the remainder when the polynomial f(x) = 2x^3 - 3x^2 + 4 is divided by x - 1?

A. 3

Which of the following is a factor of the polynomial x^2 - 5x + 6?

A. X - 2