Respuesta :

Answer:

(3x - 2)(x + 4).

Step-by-step explanation:

3x^2 + 10x − 8

3 + -8 = -24.

We need 2 numbers whose product  is -24 and whose sum is  + 10.

They are  -2 and 12, so we write:

3x^2 + 12x - 2x - 8

= 3x(x + 4)  - 2(x + 4)

= (3x - 2)(x + 4).

devishri1977

Answer:

Option 4

Step-by-step explanation:

3x² + 10x - 8 = 3x² + 12x - 2x - 2*4

                    = 3x(x +4) - 2(x + 4)

                    = (x + 4)(3x - 2)