1. Simplifying Rational Expressions
12-3
Simplifying Rational Expressions
Warm Up
Lesson Presentation
Lesson Quiz
Holt Algebra 1

2. Warm Up
Simplify each expression.
Factor each expression.
3. x2 + 5x x2 + 16x + 63

3. Objectives Simplify rational expressions.
Identify excluded values of rational expressions.

4. Vocabulary
rational expression

5. A rational expression is an algebraic expression whose numerator and denominator are polynomials. The value of the polynomial expression in the denominator cannot be zero since division by zero is undefined. This means that rational expressions may have excluded values.

6. Bell Work

7. Simplify each rational expression, if possible.4

8. Simplify each rational expression, if possible.

9. Simplify each rational expression, if possible.
3n; n ≠

10. Simplify each rational expression, if possible.

11. Simplify each rational expression, if possible.

12. Simplify each rational expression, if possible.

13. Example 3: Simplifying Rational Expressions with Trinomials
Simplify each rational expression, if possible. A. B.

14. Check It Out! Example 3
Simplify each rational expression, if possible. a. b.

15. Lesson Quiz: Part I
Simplify each rational expression, if possible. 1. 2.