Factor the Trinomial 3x^2-2x-8 Where There is No GCF & the Leading Coefficient a=3

Factor the trinomial 3x^2-2x-8. There is no GCF and the leading coefficient, a, is 3. This trinomial is factored using the ac method. The trinomial is compared to ax^2+bx+c and the values of a, b, and c are found. Two numbers are needed that multiply to ac and add to b. In case the required numbers do not come to mind quickly, a systematic method is shown on how to find these numbers. The middle term is then broken up into two terms. The resulting 4 terms are then factored by grouping.

Timestamps:
0:00 Introduction
0:39 Use ac (or Grouping) Method
3:25 Factor by Grouping