Question

What is the factorization of the trinomial below?

3x^2+36x+81
A. (x+2)(x+27)
B. (x+3)(x+9)
C. 3(x+2)(x+9)
D. 3(x+3)(x+9)

Answer 1

U can divide the whole equation by 3, u get: x^2+12x+27

Find factors of 27 that add up to 12; we get 9 and 3

So the answer is (x+3)(x+9); answer is B