Pre-Calculus - Learn to multiply radicals with the imaginary unit i, root(8) * root(-7)

The video tutorial explains how to solve a mathematical problem using different methods. It begins with an introduction to the problem-solving approach, followed by breaking down the problem into simpler parts. The instructor then explains the final solution and discusses alternative methods to reach the same conclusion.

What does the teacher emphasize about the method of reaching the final answer?

What alternative method is suggested for multiplying the terms?