Algebra 2 - How to multiply to complex numbers using foil, (sqrt(-16) - 2) (sqrt(-4) - 1)

The video tutorial introduces the concept of using the imaginary unit 'i' to simplify mathematical problems involving radicals. The instructor explains how rewriting expressions with 'i' can make them easier to understand and solve, comparing it to multiplying polynomials. The tutorial covers methods like the box method and FOIL for multiplication, and explains the significance of 'i' squared being equal to negative one. The session concludes with a final answer and a brief wrap-up.

What new insight or understanding did you gain from this video?