Tutorial - Simplifying Expressions with Complex numbers ex 7, (3 + root(-4))(4 + root(-1))

The video tutorial explains how to rewrite square roots using the imaginary unit I, apply the distributive property to multiply binomials, and simplify expressions using I squared. The process involves breaking down square roots, applying multiplication rules, and rearranging terms to achieve a simplified expression.

What does 'I' represent in terms of square roots?

How do you combine like terms after applying the distributive property?