EnVision Algebra 2 Lesson 4-4: Adding and Subtracting Rational Expressions - Examples 3, 4

🦋 enVision Algebra 2 Common Core 2018 🦋 Topic 4: Rational Functions How do you calculate with functions defined as quotients of polynomials, and what are the key features of their graphs? 🦋 Lesson objective By the end of this lesson, you will be able to find the sum or difference of rational expressions. 🦋 In Example 3, we will add rational expressions with unlike denominators. 🦋 In Example 4, we will subtract rational expressions.