How to identify when a trinomial is not factorable

The video tutorial explains how to factor a trinomial where the leading coefficient is greater than one. It introduces the AC method, which involves multiplying the coefficients a and c, and finding factors of this product that add up to the middle coefficient b. The tutorial demonstrates the process with an example, showing that the trinomial is not factorable as no suitable factors exist. The video concludes by stating that the trinomial is already in its simplest form.

What is the AC method used for in factoring trinomials?

Given a = 6, b = -1, and c = 5, what is the value of a * c?

What can be concluded if the factors of a * c are both negative but their sum is positive?

List the factors of 30 that could potentially be used in factoring the trinomial.

Why is the trinomial not factorable in this case?