Question

factorise - 3x square - x - 4

Answer 1

Answer:

3x^2-x-4=0

3x^2-4x+3x-4=0

x(3x-4) +1(3x-4) =0

(3x-4) (x+1) =0

x=4/3, x=-1

Answer 2

3x²-x-4

3x²+3x-4x-4

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

3x-4=0.   X+1=0

X=4 /3.     X=-1