Tutorial - How do we multiply complex numbers ex 14, (9 + 5i)^2

The video tutorial explains the concept of squaring numbers, focusing on the common mistake of distributing the square over addition. It introduces binomials and their properties, leading to the formation of perfect square trinomials. The tutorial further demonstrates how to apply factoring techniques to solve equations, emphasizing the importance of understanding the multiplication of binomials and the use of perfect square trinomials.

How can you express (9 + 4i)² using the formula for a binomial squared?

What is the final result of simplifying the expression (9 + 4i)²?