Question

factorize 3xSquare-x-4

Answer 1

1.62 is the answer ................ Ok I know this is wrong

Answer 2

3x2-x-4

=3x2+3x-4x-4

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

=(x+1)(3x-4)  

x=-1 or  x=4/3