Question

Factorise 3x^2 - x - 4​

Answer 1

$= 3 {x}^{2} - x - 4 \\ = 3 {x}^{2} - 4x + 3x - 4 \\ = x(3x - 4) + 1(3x - 4) \\ = (3x + 1)(x + 1)$

#hope_it_will_help_✌

Answer 2

Answer:

3x²-x-4

3x²+3x-4x-4

3x(x+1)-4(x+1)

(x+1)(3x-4)