Which of the following quadratic expressions is factorable over the integers? Select all that apply.

Question

(points)

x ^ 2 - 6x + 36

16x ^ 2 + 36x + 81

x ^ 2 - 10x + 25

4x ^ 2 + 12x + 9

4x ^ 2 - 49

Answer 1

x ^ 2 - 6x + 36

16x ^ 2 + 36x + 81

x ^ 2 - 10x + 25

4x ^ 2 + 12x + 9

None of the above expressions are factorable over the integers.