Verified answer

Factor out a 3, so you get:

3(2x^2-3x-2)=0

3(2x+1)(x-2)=0

Divide the 3 out, and you get x=-1/2, 2

9x 6

This is a quadartic equation.You will have to split the middle term 9x as 12x-3x.And then further factorise your answer.