Question

Jenna constructs the model to represent 3x2 + 11x – 4. What factors does Jenna need to model for the sides? (3x + 1) and (x – 4) (3x – 1) and (x + 4) (3x – 2) and (x + 2) (3x + 2) and (x – 2)

Answer 1

3x2 + 11x – 4 = (3x - 1) (x + 4)

answer is B. (3x – 1) and (x + 4) ( second choice)

Answer 2

The factor that Jenna need to model for the sides are:

(3x-1) and (x+4)

Explanation:

We are given a polynomial equation which is used to model as:

`3x^2+11x-4`

Now we need to factor this polynomial expression that Jenna need to model for the sides.

We factor our polynomial expression as:

`3x^2+11x-4=3x^2+12x-x-4\\\\3x^2+11x-4=3x(x+4)-1(x+4)\\\\3x^2+11x-4=(3x-1)(x+4)`

Hence, the factor that Jenna need to model for the sides are:

(3x-1) and (x+4)