Tutorial - Subtracting two imaginary numbers like like terms ex 13, -3i - 11i

The video tutorial explains how to simplify expressions by subtracting complex numbers, using a money analogy to illustrate the concept. It covers subtracting monomials with the same variable factors and explains the properties of the imaginary unit 'i'. The tutorial concludes by encouraging viewers to apply these concepts to simplify complex numbers.

What does the teacher say about the variable 'I' in the context of the expression?

What is the final simplified expression mentioned by the teacher?