Question

6. Factorise 12 x2 - 7x + 1 is O (3x-1) (4x-1) O (3x+1) (4x+1) O (3x-1) (4x-1) (3x+1) (4x-1)​

Answer 1

$\quad \: 12 {x}^{2} - 7x + 1$

$= 12 {x}^{2} - 4x - 3x + 1$

$= 4x(3x - 1) - 1(3x - 1)$

$= (3x - 1)(4x - 1)$