Question

11. (08.03)

What are the factors of 3x² + 10x + 3? (4 points)
O (3x - 1)(x-3)
O (3x - 3)(x - 1)
O (3x + 1)(x+3)
O (3x+3)(x + 1)

Answer 1

Explanation:

`= 3 {x}^(2) + 10x + 3`

`= 3 {x}^(2) + 9x + x + 3`

`= 3x(x + 3) + 1.(x + 3)`

`= (x + 3)(3x + 1)`

`= (3x + 1)(x + 3)`

The answer is C.