Multiplying Polynomials.

I've tried to answer it multiple times, but I just get confused every time--I know its a binomial x a trinomial and I know how to multiply a trinomial via a trinomial but this is just confusing to me.

Multiplying Polynomials Ive tried to answer it multiple times but I just get confused every timeI know its a binomial x a trinomial and I know how to multiply a class=