Question

4x^2 -4x -8 by splitting the middle term​

Answer 1

$4 {x}^{2} - 4x - 8 \\ \\ = > 4 {x}^{2} - 8x + 4x - 8 \\ \\ = > 4x(x - 2) + 4(x - 2) \\ \\ = > (x - 2)(4x + 4) \\ \\ = > (x - 2)4(x + 1) \\ \\ = > 4(x - 2)(x + 1)$

Answer 2

Answer:

$4 {x}^{2} - 4x - 8 \\ \\ = > 4 {x}^{2} - 8x + 4x - 8 \\ \\ = > 4x(x - 2) + 4(x - 2) \\ \\ = > (x - 2)(4x + 4) \\ \\ = > (x - 2)4(x + 1) \\ \\ = > 4(x - 2)(x + 1)$