How do you determine the LCD of rational expressions

The video tutorial explains the concept of the least common denominator (LCD) and its relation to the least common multiple (LCM). It covers how to find the LCD for fractions with different denominators by listing multiples and identifying the smallest shared multiple. The tutorial then extends these principles to polynomial expressions, highlighting the differences when dealing with variables. The video emphasizes understanding the process of finding the LCD to simplify expressions and solve equations effectively.

What is the least common multiple of the variables X and X squared?

Describe how to find the LCD when dealing with binomials.