Question

Simplify the Expression

(2x−2)(4x+1)

Question 1 options:


8x2−10x+2



8x2+16x+2



8x2+2



8x2−6x−2

Answer 1

You multiply 2x and 4x and multiply 2x by 1 and multiply -2 and 4x and then multiply -2 and 1. So the answer would be 8x^2 -6x -2

Answer 2

`8 {x}^(2) - 6x - 2`

Explanation:

`(2x - 2)(4x + 1) \\ = 2x(4x + 1) - 2(4x + 1) \\ = 8 {x}^(2) + 2x - 8x - 2 \\ = 8 {x}^(2) - 6x - 2`