Question

3x² – x – 4 fatorise it

Answer 1

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

Answer 2

Answer:

x= 4/3 and -1

Step-by-step explanation:

3x2-x-4

3x^2-(4-3)x-4

3x^2-4x-3x-4

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

(3x-4)(x-1)

so

x=4/3 and 1