Question

Factor completely. 3x3 + 9x2 + x + 3

A. (3x2 + 1)(x + 3)
B. (3x + 1)(x - 1)(x + 3)
C. x(3x2 + 9x + 3)
D. x2(3x + 1)(x + 3)

Answer 1

a or d

Explanation:

Answer 2

A. (3x^2 + 1)(x + 3)

Explanation:

3x3 + 9x2 + x + 3

I will factor by grouping

Factor out a 3x^2 from the first two terms

3x^2 (x+3) + (x+3)

Then factor out an x+3

(x+3)(3x^2+1)