Question

Factorise the following 4x^2-7x-2​

Answer 1

Answer:

(4x+1) (x-2)

Step-by-step explanation:

Question:

Factorise the following 4x²-7x-2.

Method Used:

By splitting middle term.

Solution:

4x² - 7x - 2

= 4x² - 8x + x - 2

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

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

Hope it helps you......✔✔✔

Answer 2

$4 {x}^{2} - 7x - 2$

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

$= 4 {x}^{2} - 8x + x - 2$

$= x(4x) - 2(4x) + x(1) - 2(1)$

$= (x - 2)4x + (x - 2)1$

$= (x - 2)(4x + 1)$