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

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

If A = {1, 2, 3} and B = {2, 3, 4}, what is A ? B?

B. {2, 3}

Which of the following is a factor of the polynomial x^2 - 9?

D. ALL OF THE ABOVE

If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and 4, what is the value of b in terms of a?

A. -7A

What is the L.C.M. of the polynomials x^2 - 1 and x^2 - 4?

A. (X - 1)(X + 1)(X - 2)(X + 2)