Question

What are the factors of 3x2 + 13x + 4?

(3x + 1)(x + 4)
(3x + 4)(x + 1)
(3x − 4)(x + 1)
(3x − 1)(x + 4)

Answer 1

Why don't you use FOIL and multiply each answer choice to see which one gives 3x^2+13x+4???

Answer 2

FOIL confuses me with these kinds of equations though

Answer 3

All the more reason to practice it.

Answer 4

\[\mathrm{Factor}\:3x^2+13x+4:\quad \left(x+4\right)\left(3x+1\right)\]

Answer 5

Thank you :)

Answer 6

wellcome @lalaland_lauren