What is the H.C.F. of the polynomials 2x^3 + 4x^2 and 6x^2 + 12x?

A. 2X^2

If f(x) = x^3 - 6x^2 + 11x - 6, what is the remainder when f(x) is divided by (x - 2)?

A. 0

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

A. (X - 2)

Solve the quadratic equation x^2 - 4x - 5 = 0. What is the sum of the roots?

B. 4

Solve the simultaneous equations: 2x + 3y = 6 and 4x - y = 5. What is the value of y?

B. 2