Which expression is a factor of 12x2 + 29x – 8? x – 8 2x – 1 3x + 8 4x + 1

3x + 8

Step-by-step explanation:

Please use the symbol " ^ " to indicate exponentiation:  12x^2 + 29x – 8.

To answer this question, try dividing this 12x^2 + 29x – 8 by each of the given possible factors, one by one.  If the end result is a zero remainder, that indicates that the particular factor is in fact a factor of 12x^2 + 29x – 8.

Alternatively, use synthetic division; if the end result is zero, then you have identified a root of 12x^2 + 29x – 8, as well as a factor.

Let's focus on x - 8:  Is this a factor?  Is 8 a root?  Set up synthetic division as follows:

8   )   12    29    -8

                96   1000

         12   125   992    

The non-zero remainder (992) indicates that 8 is not a root of 12x^2 + 29x – 8, and that x - 8 is not a factor.

Continuing onto the next given possible factor, 2x - 1, we set this = to 0 and solve for x, obtaining x = 1/2.  Use synthetic division again:

1/2      )    12    29    -8

                        6     35/2

              12      35    19/2                    No, 1/2 is not a root and

                                                             2x - 1 is not a factor of 12x^2 + 29x – 8.

Try possible root x = -8/3:

-8/3   )   12      29      -8

                     -32       8

            12       -3         0

This zero remainder tells us that 3x + 8 is a factor of 12x^2 + 29x – 8.

answer: 5

step-by-step explanation:

there is nothing below so i cannot

step-by-step explanation: