Which of the following quadratic expressions is factorable over the integers? Select all that apply.
(3 points)
Responses
x2−6x+36
x squared minus 6 x plus 36
x2−10x+25
x squared minus 10 x plus 25
16x2+36x+81
16 x squared plus 36 x plus 81
4x2−49
4 x squared minus 49
4x2+12x+9
x^2 - 6x + 36 can be factored as (x-6)^2
x^2 - 10x + 25 can be factored as (x-5)(x-5) or (x-5)^2
4x^2 - 49 can be factored as (2x+7)(2x-7) or (2x+7)(2x+7)
4x^2 + 12x + 9 can be factored as (2x + 3)(2x + 3) or (2x + 3)^2
Therefore, the factorable expressions are:
x^2-6x+36
x^2-10x+25
4x^2 - 49
4x^2 + 12x + 9