Step-by-step explanation: when we have a binomial multiplied by a trinomial, we need to distribute all the terms in the binomial through all the terms on the trinomial.
So distributing the x through the parentheses, we get
2x^3 - 3x^2 -2x
Now we distribute the-2 through the parentheses.
so we get -4x^2 + 6x + 4.
Now combine to get 2x^3 - 7x^2 + 4x + 4.