2. 10.4 Addition and Subtraction: Like Denominators Goal: to add and subtract rational expressions with like denominators

3. 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

4. What does it mean to be simplified? Your answer has to be completely factored (the numerator and denominator) any common factors must be canceled out

5. Add & Subtract Rational Expressions When the denominators are the same, add or subtract the numerators and write the sum or difference over the common denominator.

6. 3m

7. Add & Subtract Rational Expressions

8. 3x 2 +4x-15 - 454

9. Add & Subtract Rational Expressions

11. x + 4 Factors of ACSum=B

12. Subtracting RE When you subtract a RE remember to distribute the minus sign to the numerator of the 2 nd RE

13. Subtract:

14. Subtract Rational Expressions

15. Subtract fractions: ( ) 2

16. Subtract fractions:

20. Assignment Page 443 2-32 even Answer must be factored