How to simplify by rationalizing the denominator, 14root(8) / 7root(2)

The video tutorial explains the complexity of dividing by irrational numbers, using sqrt 5 as an example. It highlights the challenges of dealing with decimals that extend indefinitely and emphasizes the importance of not dividing by irrational numbers. The tutorial demonstrates how to simplify expressions using square roots and provides a step-by-step example of solving a division problem involving radicals.

Describe the relationship between squaring and taking the square root as mentioned in the text.

What is the final answer obtained after simplifying the expression in the example?