If the quadratic equation x^2 - 6x + 8 = 0 has roots r1 and r2, what is the value of r1 + r2?

B. 6

What is the result of dividing the polynomial 2x^3 + 3x^2 - x + 5 by x - 1 using synthetic division?

B. 2X^2 + 5X + 3

Which of the following is the correct factorization of the quadratic expression x^2 - 5x + 6?

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

If the polynomial f(x) = x^3 - 4x^2 + 6x - 24 is divided by x - 2, what is the remainder?

A. 0

What is the highest common factor (H.C.F.) of the polynomials 6x^2y and 9xy^2?

A. 3XY