1. 10.4 Addition and Subtraction: Like Denominators
Goal: to add or subtract the numerators of fractions with like denominators and then simplify

2. To add and subtract rational expressions with like denominators…
Keep the denominator and add or subtract the numerators (just like adding like terms)
Remember to simplify your final answer

3. Add & Subtract Rational Expressions
REVIEW:

4. Example 1
3x2 + 4x
-15

5. Example 2

6. Example 3
x + 4

7. Subtracting Rational Expressions (RE)
When you subtract a RE remember to distribute the minus sign to the numerator of the 2nd RE

8. REVIEW:

9. Example 4
( ) 2

10. Example 5

11. Example 6

12. You try example 7:

13. Answer must be factored
Assignment Page even
Answer must be factored