Question

factorise 1 - x -12x2​

Answer 1

hope this answer helps u.

Answer 2

$\red\mapsto$ - 12x² - x + 1

$\red\mapsto$ - 12x² -4x + 3x + 1

$\red\mapsto$  -4x(3x + 1) + 1(3x + 1)

$\red\mapsto$ (-4x + 1)(3x + 1)