How to determine the LCM to allow us to add two rational expressions

The video tutorial discusses the concepts of the greatest common factor (GCF) and least common multiple (LCM), explaining how to determine the smallest number that two expressions divide into. It covers the rules of exponents and division, correcting common mistakes in calculations. The tutorial concludes with a final calculation, emphasizing the importance of understanding mathematical principles and processes.

What mistake did the students make regarding the multiplication of terms?

What is the final answer for the expression involving 4X^2 and 5?