Question

Factorisation of x - 4x - 12 is 

a. (x + 6) (x - 2)          b. (x - 6) (x + 2)          c. (x - 6) (x -2)          d. (x + 6) (x + 2​

Answer 1

Answer:

(x+2)(x-6)

Step-by-step explanation:

x^2-4x-12 = x^2-(6-2)x-12

= x^2-6x+2x-12

= x(x-6)+2(x-6)

= (x+2)(x-6)