Question

Factor the trinomial below.

8x2 - 12x - 8
O A. 4(2x + 1)(x - 2)
B. 4(2x + 2)(x - 1)
O C. 4(2x + 3)(x - 1)
D. 4(2x + 1)(x-8)

Answer 1

A

Step-by-step explanation:

Answer 2

A.
`4(2x+1)(x-2)`

Step-by-step explanation:

`8x^(2) -12x-8`

1. You can factor out a 4.

`4(2x^(2) -3x-2)`

2. Factor
`(2x^(2) -3x-2)`.

X-Method:

1. Draw an X

2. Multiply ac (2(-2)=-4) then put it in the top part of the X

3. Then put b, -3, in the bottom part of the X

4. On the two sides of the X find out what added together equals b, -3,

and multiplied equals ac, -4.

5. -4(1)=-4 & -4+1=-3

6. If the quadratic has a coefficient then you must divide the two sides

of the X by that coefficient, 2.

7. -4/2=-2 & 1/2 can't be evenly divided into, so in this case the

coefficient remains.

8. When you write this out it will be (2x+1)(x-2)

3. Put it together to get your answer.

`4(2x+1)(x-2)`