Question

factorise 3x^2 - x - 4​

Answer 1

Answer:

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

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

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

Answer 2

Answer:

3x^2-x-4

3x^2-4x+3x-4.......(splitting the middle term)

3x^2+3x-4x-4......(rearranging the terms)

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

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

hope this helps! ❤